128893464 has 64 divisors (see below), whose sum is σ = 409190400. Its totient is φ = 36826272.

The previous prime is 128893451. The next prime is 128893483. The reversal of 128893464 is 464398821.

It is a happy number.

It is a super-2 number, since 2×128893464² = 33227050123838592, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41112 + ... + 44135.

It is an arithmetic number, because the mean of its divisors is an integer number (6393600).

Almost surely, 2^128893464 is an apocalyptic number.

128893464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128893464 is an abundant number, since it is smaller than the sum of its proper divisors (280296936).

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

128893464 is a wasteful number, since it uses less digits than its factorization.

128893464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85269 (or 85259 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 128893464 is about 11353.1257369942. The cubic root of 128893464 is about 505.1383001928.

The spelling of 128893464 in words is "one hundred twenty-eight million, eight hundred ninety-three thousand, four hundred sixty-four".