100404021624 has 32 divisors (see below), whose sum is σ = 253495308240. Its totient is φ = 33136640000.

The previous prime is 100404021593. The next prime is 100404021631. The reversal of 100404021624 is 426120404001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 100404021594 and 100404021603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20707977 + ... + 20712824.

Almost surely, 2^100404021624 is an apocalyptic number.

It is an amenable number.

100404021624 is an abundant number, since it is smaller than the sum of its proper divisors (153091286616).

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

100404021624 is a wasteful number, since it uses less digits than its factorization.

100404021624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41420911 (or 41420907 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 100404021624 its reverse (426120404001), we get a palindrome (526524425625).

The spelling of 100404021624 in words is "one hundred billion, four hundred four million, twenty-one thousand, six hundred twenty-four".