79100040 has 64 divisors (see below), whose sum is σ = 249796800. Its totient is φ = 19982592.

The previous prime is 79100039. The next prime is 79100053. The reversal of 79100040 is 4000197.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15067 + ... + 19626.

It is an arithmetic number, because the mean of its divisors is an integer number (3903075).

Almost surely, 2^79100040 is an apocalyptic number.

It is an amenable number.

79100040 is an abundant number, since it is smaller than the sum of its proper divisors (170696760).

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

79100040 is a wasteful number, since it uses less digits than its factorization.

79100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34726 (or 34722 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 79100040 is about 8893.8203264964. The cubic root of 79100040 is about 429.2650868422.

The spelling of 79100040 in words is "seventy-nine million, one hundred thousand, forty".