64489374 has 12 divisors (see below), whose sum is σ = 139727016. Its totient is φ = 21496452.

The previous prime is 64489367. The next prime is 64489391. The reversal of 64489374 is 47398446.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1791354 + ... + 1791389.

It is an arithmetic number, because the mean of its divisors is an integer number (11643918).

Almost surely, 2^64489374 is an apocalyptic number.

64489374 is an abundant number, since it is smaller than the sum of its proper divisors (75237642).

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

64489374 is a wasteful number, since it uses less digits than its factorization.

64489374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582751 (or 3582748 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 64489374 is about 8030.5276289918. The cubic root of 64489374 is about 401.0169415504.

The spelling of 64489374 in words is "sixty-four million, four hundred eighty-nine thousand, three hundred seventy-four".