4020323142 has 64 divisors (see below), whose sum is σ = 9007987968. Its totient is φ = 1185600000.

The previous prime is 4020323129. The next prime is 4020323173. The reversal of 4020323142 is 2413230204.

4020323142 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4020323142² = 32325996332201504328, which contains 22 as substring.

It is a congruent number.

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, 1235017 + ... + 1238267.

It is an arithmetic number, because the mean of its divisors is an integer number (140749812).

Almost surely, 2^4020323142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020323142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4503993984).

4020323142 is an abundant number, since it is smaller than the sum of its proper divisors (4987664826).

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

4020323142 is a wasteful number, since it uses less digits than its factorization.

4020323142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4020323142 is about 63406.0181843963. The cubic root of 4020323142 is about 1590.0849264396.

Adding to 4020323142 its reverse (2413230204), we get a palindrome (6433553346).

The spelling of 4020323142 in words is "four billion, twenty million, three hundred twenty-three thousand, one hundred forty-two".