40000100 has 36 divisors (see below), whose sum is σ = 99201984. Its totient is φ = 13714080.

The previous prime is 40000061. The next prime is 40000123. The reversal of 40000100 is 100004.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27872 + ... + 29271.

Almost surely, 2^40000100 is an apocalyptic number.

It is an amenable number.

40000100 is an abundant number, since it is smaller than the sum of its proper divisors (59201884).

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

40000100 is a wasteful number, since it uses less digits than its factorization.

40000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57164 (or 57157 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 40000100 is about 6324.5632260260. The cubic root of 40000100 is about 341.9954743311.

Adding to 40000100 its reverse (100004), we get a palindrome (40100104).

The spelling of 40000100 in words is "forty million, one hundred", and thus it is an aban number.