100436816 has 20 divisors (see below), whose sum is σ = 206043732. Its totient is φ = 47264256.

The previous prime is 100436801. The next prime is 100436827. The reversal of 100436816 is 618634001.

It can be written as a sum of positive squares in 2 ways, for example, as 29203216 + 71233600 = 5404^2 + 8440^2 .

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, 184355 + ... + 184898.

Almost surely, 2^100436816 is an apocalyptic number.

100436816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100436816 is an abundant number, since it is smaller than the sum of its proper divisors (105606916).

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

100436816 is a wasteful number, since it uses less digits than its factorization.

100436816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369278 (or 369272 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 100436816 is about 10021.8170009235. The cubic root of 100436816 is about 464.8337417725.

The spelling of 100436816 in words is "one hundred million, four hundred thirty-six thousand, eight hundred sixteen".