100457808 has 40 divisors (see below), whose sum is σ = 283109856. Its totient is φ = 30441600.

The previous prime is 100457801. The next prime is 100457821. The reversal of 100457808 is 808754001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100457801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94603 + ... + 95658.

Almost surely, 2^100457808 is an apocalyptic number.

It is an amenable number.

100457808 is an abundant number, since it is smaller than the sum of its proper divisors (182652048).

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

100457808 is a wasteful number, since it uses less digits than its factorization.

100457808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190283 (or 190277 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 100457808 is about 10022.8642612778. The cubic root of 100457808 is about 464.8661240222.

The spelling of 100457808 in words is "one hundred million, four hundred fifty-seven thousand, eight hundred eight".