64494274 has 16 divisors (see below), whose sum is σ = 105198912. Its totient is φ = 29476368.

The previous prime is 64494239. The next prime is 64494299. The reversal of 64494274 is 47249446.

It is a super-2 number, since 2×64494274² = 8319022757574152, which contains 22 as substring.

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, 9364 + ... + 14719.

It is an arithmetic number, because the mean of its divisors is an integer number (6574932).

Almost surely, 2^64494274 is an apocalyptic number.

64494274 is a deficient number, since it is larger than the sum of its proper divisors (40704638).

64494274 is a wasteful number, since it uses less digits than its factorization.

64494274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24201.

The product of its digits is 193536, while the sum is 40.

The square root of 64494274 is about 8030.8327090035. The cubic root of 64494274 is about 401.0270979173.

The spelling of 64494274 in words is "sixty-four million, four hundred ninety-four thousand, two hundred seventy-four".