4090725972 has 36 divisors (see below), whose sum is σ = 10342884916. Its totient is φ = 1363253760.

The previous prime is 4090725971. The next prime is 4090725983. The reversal of 4090725972 is 2795270904.

It can be written as a sum of positive squares in 2 ways, for example, as 956293776 + 3134432196 = 30924^2 + 55986^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090725971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179358 + ... + 200874.

Almost surely, 2^4090725972 is an apocalyptic number.

It is an amenable number.

4090725972 is an abundant number, since it is smaller than the sum of its proper divisors (6252158944).

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

4090725972 is a wasteful number, since it uses less digits than its factorization.

4090725972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26808 (or 26803 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 4090725972 is about 63958.7833843015. The cubic root of 4090725972 is about 1599.3129826509.

The spelling of 4090725972 in words is "four billion, ninety million, seven hundred twenty-five thousand, nine hundred seventy-two".