4202606640 has 80 divisors (see below), whose sum is σ = 13034308608. Its totient is φ = 1120159488.

The previous prime is 4202606623. The next prime is 4202606647. The reversal of 4202606640 is 466062024.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4202606598 and 4202606607.

It is not an unprimeable number, because it can be changed into a prime (4202606647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988359 + ... + 992601.

Almost surely, 2^4202606640 is an apocalyptic number.

4202606640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4202606640 is an abundant number, since it is smaller than the sum of its proper divisors (8831701968).

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

4202606640 is a wasteful number, since it uses less digits than its factorization.

4202606640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8386 (or 8380 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 4202606640 is about 64827.5145289406. The cubic root of 4202606640 is about 1613.7623569691.

Adding to 4202606640 its reverse (466062024), we get a palindrome (4668668664).

The spelling of 4202606640 in words is "four billion, two hundred two million, six hundred six thousand, six hundred forty".