128490600 has 96 divisors (see below), whose sum is σ = 455238720. Its totient is φ = 29368320.

The previous prime is 128490589. The next prime is 128490623. The reversal of 128490600 is 6094821.

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

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 23 ways as a sum of consecutive naturals, for example, 11097 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (4742070).

Almost surely, 2^128490600 is an apocalyptic number.

128490600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128490600 is an abundant number, since it is smaller than the sum of its proper divisors (326748120).

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

128490600 is a wasteful number, since it uses less digits than its factorization.

128490600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30619 (or 30610 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 128490600 is about 11335.3694249460. The cubic root of 128490600 is about 504.6114712446.

The spelling of 128490600 in words is "one hundred twenty-eight million, four hundred ninety thousand, six hundred".