64381460 has 48 divisors (see below), whose sum is σ = 158844672. Its totient is φ = 21609600.

The previous prime is 64381459. The next prime is 64381469. The reversal of 64381460 is 6418346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64381469) 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, 8396 + ... + 14115.

It is an arithmetic number, because the mean of its divisors is an integer number (3309264).

Almost surely, 2^64381460 is an apocalyptic number.

It is an amenable number.

64381460 is an abundant number, since it is smaller than the sum of its proper divisors (94463212).

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

64381460 is a wasteful number, since it uses less digits than its factorization.

64381460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22544 (or 22542 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 64381460 is about 8023.8058301532. The cubic root of 64381460 is about 400.7931346375.

The spelling of 64381460 in words is "sixty-four million, three hundred eighty-one thousand, four hundred sixty".