128373376 has 16 divisors (see below), whose sum is σ = 255744090. Its totient is φ = 64186624.

The previous prime is 128373359. The next prime is 128373379. The reversal of 128373376 is 673373821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 108659776 + 19713600 = 10424^2 + 4440^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (128373379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501331 + ... + 501586.

Almost surely, 2^128373376 is an apocalyptic number.

128373376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128373376 is a deficient number, since it is larger than the sum of its proper divisors (127370714).

128373376 is an equidigital number, since it uses as much as digits as its factorization.

128373376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002931 (or 1002919 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 128373376 is about 11330.1975269631. The cubic root of 128373376 is about 504.4579695543.

The spelling of 128373376 in words is "one hundred twenty-eight million, three hundred seventy-three thousand, three hundred seventy-six".