64429264 has 10 divisors (see below), whose sum is σ = 124831730. Its totient is φ = 32214624.

The previous prime is 64429249. The next prime is 64429283. The reversal of 64429264 is 46292446.

It can be written as a sum of positive squares in only one way, i.e., 53406864 + 11022400 = 7308^2 + 3320^2 .

It is a super-2 number, since 2×64429264² = 8302260119163392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013399 + ... + 2013430.

It is an arithmetic number, because the mean of its divisors is an integer number (12483173).

Almost surely, 2^64429264 is an apocalyptic number.

It is an amenable number.

64429264 is a deficient number, since it is larger than the sum of its proper divisors (60402466).

64429264 is a wasteful number, since it uses less digits than its factorization.

64429264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026837 (or 4026831 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 64429264 is about 8026.7841630381. The cubic root of 64429264 is about 400.8923079860.

The spelling of 64429264 in words is "sixty-four million, four hundred twenty-nine thousand, two hundred sixty-four".