4020341634 has 64 divisors (see below), whose sum is σ = 9231264000. Its totient is φ = 1295979264.

The previous prime is 4020341627. The next prime is 4020341641. The reversal of 4020341634 is 4361430204.

4020341634 is a `hidden beast` number, since 4 + 0 + 20 + 3 + 4 + 1 + 634 = 666.

4020341634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4020341627) and next prime (4020341641).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4020341598 and 4020341607.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327642 + ... + 339690.

It is an arithmetic number, because the mean of its divisors is an integer number (144238500).

Almost surely, 2^4020341634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020341634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4615632000).

4020341634 is an abundant number, since it is smaller than the sum of its proper divisors (5210922366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4020341634 is a wasteful number, since it uses less digits than its factorization.

4020341634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12264 (or 12258 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 4020341634 is about 63406.1640063488. The cubic root of 4020341634 is about 1590.0873643701.

Adding to 4020341634 its reverse (4361430204), we get a palindrome (8381771838).

The spelling of 4020341634 in words is "four billion, twenty million, three hundred forty-one thousand, six hundred thirty-four".