128045460 has 48 divisors (see below), whose sum is σ = 367278912. Its totient is φ = 33312000.

The previous prime is 128045441. The next prime is 128045471. The reversal of 128045460 is 64540821.

It is a super-2 number, since 2×128045460² = 32791279653223200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 23566 + ... + 28485.

It is an arithmetic number, because the mean of its divisors is an integer number (7651644).

Almost surely, 2^128045460 is an apocalyptic number.

128045460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128045460 is an abundant number, since it is smaller than the sum of its proper divisors (239233452).

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

128045460 is a wasteful number, since it uses less digits than its factorization.

128045460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52104 (or 52102 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 128045460 is about 11315.7173877753. The cubic root of 128045460 is about 504.0280754076.

The spelling of 128045460 in words is "one hundred twenty-eight million, forty-five thousand, four hundred sixty".