64452402 has 32 divisors (see below), whose sum is σ = 163689600. Its totient is φ = 18414864.

The previous prime is 64452383. The next prime is 64452403. The reversal of 64452402 is 20425446.

It is a super-2 number, since 2×64452402² = 8308224247139208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (64452403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84877 + ... + 85632.

It is an arithmetic number, because the mean of its divisors is an integer number (5115300).

Almost surely, 2^64452402 is an apocalyptic number.

64452402 is an abundant number, since it is smaller than the sum of its proper divisors (99237198).

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

64452402 is a wasteful number, since it uses less digits than its factorization.

64452402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170527 (or 170521 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 64452402 is about 8028.2253331605. The cubic root of 64452402 is about 400.9402920618.

Adding to 64452402 its reverse (20425446), we get a palindrome (84877848).

The spelling of 64452402 in words is "sixty-four million, four hundred fifty-two thousand, four hundred two".