64452424 has 8 divisors (see below), whose sum is σ = 120848310. Its totient is φ = 32226208.

The previous prime is 64452419. The next prime is 64452439. The reversal of 64452424 is 42425446.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63202500 + 1249924 = 7950^2 + 1118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×64452424² = 8308229918951552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4028269 + ... + 4028284.

Almost surely, 2^64452424 is an apocalyptic number.

It is an amenable number.

64452424 is a deficient number, since it is larger than the sum of its proper divisors (56395886).

64452424 is a wasteful number, since it uses less digits than its factorization.

64452424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056559 (or 8056555 counting only the distinct ones).

The product of its digits is 30720, while the sum is 31.

The square root of 64452424 is about 8028.2267033262. The cubic root of 64452424 is about 400.9403376804.

The spelling of 64452424 in words is "sixty-four million, four hundred fifty-two thousand, four hundred twenty-four".