64481460 has 24 divisors (see below), whose sum is σ = 180548256. Its totient is φ = 17195040.

The previous prime is 64481447. The next prime is 64481477. The reversal of 64481460 is 6418446.

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, 537286 + ... + 537405.

It is an arithmetic number, because the mean of its divisors is an integer number (7522844).

Almost surely, 2^64481460 is an apocalyptic number.

64481460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64481460 is an abundant number, since it is smaller than the sum of its proper divisors (116066796).

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

64481460 is a wasteful number, since it uses less digits than its factorization.

64481460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074703 (or 1074701 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 64481460 is about 8030.0348691646. The cubic root of 64481460 is about 401.0005368948. Note that the first 3 decimals are identical.

The spelling of 64481460 in words is "sixty-four million, four hundred eighty-one thousand, four hundred sixty".