128563962 has 24 divisors (see below), whose sum is σ = 273146496. Its totient is φ = 40333248.

The previous prime is 128563949. The next prime is 128563991. The reversal of 128563962 is 269365821.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35338 + ... + 38805.

It is an arithmetic number, because the mean of its divisors is an integer number (11381104).

Almost surely, 2^128563962 is an apocalyptic number.

128563962 is an abundant number, since it is smaller than the sum of its proper divisors (144582534).

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

128563962 is a wasteful number, since it uses less digits than its factorization.

128563962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74182 (or 74165 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 128563962 is about 11338.6049406442. The cubic root of 128563962 is about 504.7074893283.

The spelling of 128563962 in words is "one hundred twenty-eight million, five hundred sixty-three thousand, nine hundred sixty-two".