128372692 has 24 divisors (see below), whose sum is σ = 257342400. Its totient is φ = 54888960.

The previous prime is 128372689. The next prime is 128372701. The reversal of 128372692 is 296273821.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7467 + ... + 17677.

It is an arithmetic number, because the mean of its divisors is an integer number (10722600).

Almost surely, 2^128372692 is an apocalyptic number.

It is an amenable number.

128372692 is an abundant number, since it is smaller than the sum of its proper divisors (128969708).

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

128372692 is a wasteful number, since it uses less digits than its factorization.

128372692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671 (or 10669 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 128372692 is about 11330.1673421005. The cubic root of 128372692 is about 504.4570736005.

The spelling of 128372692 in words is "one hundred twenty-eight million, three hundred seventy-two thousand, six hundred ninety-two".