4642450640 has 40 divisors (see below), whose sum is σ = 11262993408. Its totient is φ = 1776241280.

The previous prime is 4642450619. The next prime is 4642450649. The reversal of 4642450640 is 460542464.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 4642450640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4642450649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259696 + ... + 1263375.

Almost surely, 2^4642450640 is an apocalyptic number.

4642450640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4642450640 is an abundant number, since it is smaller than the sum of its proper divisors (6620542768).

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

4642450640 is a wasteful number, since it uses less digits than its factorization.

4642450640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523107 (or 2523101 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The square root of 4642450640 is about 68135.5314061614. The cubic root of 4642450640 is about 1668.2037698636.

The spelling of 4642450640 in words is "four billion, six hundred forty-two million, four hundred fifty thousand, six hundred forty".