128468562 has 32 divisors (see below), whose sum is σ = 264358080. Its totient is φ = 41603520.

The previous prime is 128468513. The next prime is 128468567. The reversal of 128468562 is 265864821.

It is not an unprimeable number, because it can be changed into a prime (128468567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28264 + ... + 32492.

It is an arithmetic number, because the mean of its divisors is an integer number (8261190).

Almost surely, 2^128468562 is an apocalyptic number.

128468562 is an abundant number, since it is smaller than the sum of its proper divisors (135889518).

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

128468562 is a wasteful number, since it uses less digits than its factorization.

128468562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378.

The product of its digits is 184320, while the sum is 42.

The square root of 128468562 is about 11334.3972931956. The cubic root of 128468562 is about 504.5826202017.

The spelling of 128468562 in words is "one hundred twenty-eight million, four hundred sixty-eight thousand, five hundred sixty-two".