100453040 has 20 divisors (see below), whose sum is σ = 233553504. Its totient is φ = 40181184.

The previous prime is 100453021. The next prime is 100453043. The reversal of 100453040 is 40354001.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (100453043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627752 + ... + 627911.

Almost surely, 2^100453040 is an apocalyptic number.

100453040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100453040 is an abundant number, since it is smaller than the sum of its proper divisors (133100464).

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

100453040 is a wasteful number, since it uses less digits than its factorization.

100453040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255676 (or 1255670 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 100453040 is about 10022.6264022960. The cubic root of 100453040 is about 464.8587693036.

The spelling of 100453040 in words is "one hundred million, four hundred fifty-three thousand, forty".