64844374 has 16 divisors (see below), whose sum is σ = 114748416. Its totient is φ = 26893800.

The previous prime is 64844369. The next prime is 64844389. The reversal of 64844374 is 47344846.

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, 74272 + ... + 75139.

It is an arithmetic number, because the mean of its divisors is an integer number (7171776).

Almost surely, 2^64844374 is an apocalyptic number.

64844374 is a deficient number, since it is larger than the sum of its proper divisors (49904042).

64844374 is a wasteful number, since it uses less digits than its factorization.

64844374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149451.

The product of its digits is 258048, while the sum is 40.

The square root of 64844374 is about 8052.6004495442. The cubic root of 64844374 is about 401.7514325175.

The spelling of 64844374 in words is "sixty-four million, eight hundred forty-four thousand, three hundred seventy-four".