372495721 has 16 divisors (see below), whose sum is σ = 438455808. Its totient is φ = 313171200.

The previous prime is 372495719. The next prime is 372495743. The reversal of 372495721 is 127594273.

It is a cyclic number.

It is not a de Polignac number, because 372495721 - 2¹ = 372495719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (372495521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20335 + ... + 34036.

It is an arithmetic number, because the mean of its divisors is an integer number (27403488).

Almost surely, 2^372495721 is an apocalyptic number.

372495721 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

372495721 is a deficient number, since it is larger than the sum of its proper divisors (65960087).

372495721 is a wasteful number, since it uses less digits than its factorization.

372495721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54432.

The product of its digits is 105840, while the sum is 40.

The square root of 372495721 is about 19300.1482118661. The cubic root of 372495721 is about 719.5159561656.

The spelling of 372495721 in words is "three hundred seventy-two million, four hundred ninety-five thousand, seven hundred twenty-one".