100722432 has 36 divisors (see below), whose sum is σ = 268070600. Its totient is φ = 33573888.

The previous prime is 100722421. The next prime is 100722443. The reversal of 100722432 is 234227001.

It is an interprime number because it is at equal distance from previous prime (100722421) and next prime (100722443).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 100722399 and 100722408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64807 + ... + 66342.

Almost surely, 2^100722432 is an apocalyptic number.

100722432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100722432 is an abundant number, since it is smaller than the sum of its proper divisors (167348168).

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

100722432 is an equidigital number, since it uses as much as digits as its factorization.

100722432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131168 (or 131154 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 100722432 is about 10036.0565960939. The cubic root of 100722432 is about 465.2739465669.

Adding to 100722432 its reverse (234227001), we get a palindrome (334949433).

The spelling of 100722432 in words is "one hundred million, seven hundred twenty-two thousand, four hundred thirty-two".