372409989 has 8 divisors (see below), whose sum is σ = 567481920. Its totient is φ = 212805696.

The previous prime is 372409957. The next prime is 372409991. The reversal of 372409989 is 989904273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 372409989 - 2⁵ = 372409957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (372409489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8866884 + ... + 8866925.

It is an arithmetic number, because the mean of its divisors is an integer number (70935240).

Almost surely, 2^372409989 is an apocalyptic number.

It is an amenable number.

372409989 is a deficient number, since it is larger than the sum of its proper divisors (195071931).

372409989 is a wasteful number, since it uses less digits than its factorization.

372409989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17733819.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 372409989 is about 19297.9270648430. The cubic root of 372409989 is about 719.4607517060.

The spelling of 372409989 in words is "three hundred seventy-two million, four hundred nine thousand, nine hundred eighty-nine".