128892760 has 32 divisors (see below), whose sum is σ = 290348640. Its totient is φ = 51496704.

The previous prime is 128892697. The next prime is 128892763. The reversal of 128892760 is 67298821.

It is a super-2 number, since 2×128892760² = 33226687160835200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128892763) 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, 50884 + ... + 53356.

It is an arithmetic number, because the mean of its divisors is an integer number (9073395).

Almost surely, 2^128892760 is an apocalyptic number.

128892760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128892760 is an abundant number, since it is smaller than the sum of its proper divisors (161455880).

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

128892760 is a wasteful number, since it uses less digits than its factorization.

128892760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3783 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 128892760 is about 11353.0947322745. The cubic root of 128892760 is about 505.1373805237.

The spelling of 128892760 in words is "one hundred twenty-eight million, eight hundred ninety-two thousand, seven hundred sixty".