72051104 has 24 divisors (see below), whose sum is σ = 145313028. Its totient is φ = 35146240.

The previous prime is 72051103. The next prime is 72051127. The reversal of 72051104 is 40115027.

It can be written as a sum of positive squares in 2 ways, for example, as 63170704 + 8880400 = 7948^2 + 2980^2 .

It is not an unprimeable number, because it can be changed into a prime (72051103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26147 + ... + 28770.

Almost surely, 2^72051104 is an apocalyptic number.

It is an amenable number.

72051104 is an abundant number, since it is smaller than the sum of its proper divisors (73261924).

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

72051104 is a wasteful number, since it uses less digits than its factorization.

72051104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54968 (or 54960 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 72051104 is about 8488.2921721628. The cubic root of 72051104 is about 416.1151678175.

The spelling of 72051104 in words is "seventy-two million, fifty-one thousand, one hundred four".