468979638 has 16 divisors (see below), whose sum is σ = 938980080. Its totient is φ = 156156416.

The previous prime is 468979597. The next prime is 468979639. The reversal of 468979638 is 836979864.

It is a super-2 number, since 2×468979638² = 439883801717222088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468979639) 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, 36495 + ... + 47642.

It is an arithmetic number, because the mean of its divisors is an integer number (58686255).

Almost surely, 2^468979638 is an apocalyptic number.

468979638 is an abundant number, since it is smaller than the sum of its proper divisors (470000442).

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

468979638 is a wasteful number, since it uses less digits than its factorization.

468979638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85071.

The product of its digits is 15676416, while the sum is 60.

The square root of 468979638 is about 21655.9377077050. The cubic root of 468979638 is about 776.9349570965.

The spelling of 468979638 in words is "four hundred sixty-eight million, nine hundred seventy-nine thousand, six hundred thirty-eight".