100472538 has 16 divisors (see below), whose sum is σ = 206376480. Its totient is φ = 32585616.

The previous prime is 100472527. The next prime is 100472543. The reversal of 100472538 is 835274001.

It is a super-2 number, since 2×100472538² = 20189461784322888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226068 + ... + 226511.

It is an arithmetic number, because the mean of its divisors is an integer number (12898530).

Almost surely, 2^100472538 is an apocalyptic number.

100472538 is an abundant number, since it is smaller than the sum of its proper divisors (105903942).

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

100472538 is a wasteful number, since it uses less digits than its factorization.

100472538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452621.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 100472538 is about 10023.5990542320. The cubic root of 100472538 is about 464.8888438204. Note that the first 4 decimals are identical.

The spelling of 100472538 in words is "one hundred million, four hundred seventy-two thousand, five hundred thirty-eight".