100400420624 has 60 divisors (see below), whose sum is σ = 226347441408. Its totient is φ = 43016904000.

The previous prime is 100400420623. The next prime is 100400420633. The reversal of 100400420624 is 426024004001.

It is a super-2 number, since 2×100400420624² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100400420624.

It is not an unprimeable number, because it can be changed into a prime (100400420623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3207449 + ... + 3238599.

Almost surely, 2^100400420624 is an apocalyptic number.

100400420624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

100400420624 is an abundant number, since it is smaller than the sum of its proper divisors (125947020784).

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

100400420624 is a wasteful number, since it uses less digits than its factorization.

100400420624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35284 (or 35271 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 100400420624 its reverse (426024004001), we get a palindrome (526424424625).

The spelling of 100400420624 in words is "one hundred billion, four hundred million, four hundred twenty thousand, six hundred twenty-four".