128463970 has 16 divisors (see below), whose sum is σ = 241289280. Its totient is φ = 49151344.

The previous prime is 128463961. The next prime is 128463983. The reversal of 128463970 is 79364821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279040 + ... + 279499.

It is an arithmetic number, because the mean of its divisors is an integer number (15080580).

Almost surely, 2^128463970 is an apocalyptic number.

128463970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128463970 is a deficient number, since it is larger than the sum of its proper divisors (112825310).

128463970 is a wasteful number, since it uses less digits than its factorization.

128463970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558569.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 128463970 is about 11334.1947221671. The cubic root of 128463970 is about 504.5766081705.

The spelling of 128463970 in words is "one hundred twenty-eight million, four hundred sixty-three thousand, nine hundred seventy".