64740488 has 32 divisors (see below), whose sum is σ = 130309560. Its totient is φ = 30044160.

The previous prime is 64740451. The next prime is 64740509. The reversal of 64740488 is 88404746.

It can be written as a sum of positive squares in 4 ways, for example, as 64609444 + 131044 = 8038^2 + 362^2 .

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, 6668 + ... + 13188.

Almost surely, 2^64740488 is an apocalyptic number.

64740488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

64740488 is an abundant number, since it is smaller than the sum of its proper divisors (65569072).

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

64740488 is a wasteful number, since it uses less digits than its factorization.

64740488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617 (or 6613 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 64740488 is about 8046.1474010858. The cubic root of 64740488 is about 401.5367716048.

The spelling of 64740488 in words is "sixty-four million, seven hundred forty thousand, four hundred eighty-eight".