64274370 has 48 divisors (see below), whose sum is σ = 156641472. Its totient is φ = 16878880.

The previous prime is 64274363. The next prime is 64274381. The reversal of 64274370 is 7347246.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206515 + ... + 206825.

It is an arithmetic number, because the mean of its divisors is an integer number (3263364).

Almost surely, 2^64274370 is an apocalyptic number.

64274370 is an abundant number, since it is smaller than the sum of its proper divisors (92367102).

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

64274370 is a wasteful number, since it uses less digits than its factorization.

64274370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 64274370 is about 8017.1297856527. The cubic root of 64274370 is about 400.5707892782.

The spelling of 64274370 in words is "sixty-four million, two hundred seventy-four thousand, three hundred seventy".