64492488 has 24 divisors (see below), whose sum is σ = 174667350. Its totient is φ = 21497472.

The previous prime is 64492469. The next prime is 64492489. The reversal of 64492488 is 88429446.

It can be written as a sum of positive squares in only one way, i.e., 35784324 + 28708164 = 5982^2 + 5358^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (64492489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 447793 + ... + 447936.

Almost surely, 2^64492488 is an apocalyptic number.

It is an amenable number.

64492488 is an abundant number, since it is smaller than the sum of its proper divisors (110174862).

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

64492488 is a wasteful number, since it uses less digits than its factorization.

64492488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895741 (or 895734 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 64492488 is about 8030.7215117946. The cubic root of 64492488 is about 401.0233960848.

It can be divided in two parts, 64492 and 488, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 64492488 in words is "sixty-four million, four hundred ninety-two thousand, four hundred eighty-eight".