128498862 has 16 divisors (see below), whose sum is σ = 270524160. Its totient is φ = 40578552.

The previous prime is 128498849. The next prime is 128498897. The reversal of 128498862 is 268894821.

It is a congruent number.

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, 563478 + ... + 563705.

It is an arithmetic number, because the mean of its divisors is an integer number (16907760).

Almost surely, 2^128498862 is an apocalyptic number.

128498862 is an abundant number, since it is smaller than the sum of its proper divisors (142025298).

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

128498862 is a wasteful number, since it uses less digits than its factorization.

128498862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127207.

The product of its digits is 442368, while the sum is 48.

The square root of 128498862 is about 11335.7338536153. The cubic root of 128498862 is about 504.6222865899.

The spelling of 128498862 in words is "one hundred twenty-eight million, four hundred ninety-eight thousand, eight hundred sixty-two".