64420532 has 12 divisors (see below), whose sum is σ = 122984736. Its totient is φ = 29282040.

The previous prime is 64420519. The next prime is 64420537. The reversal of 64420532 is 23502446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64420537) 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 3 ways as a sum of consecutive naturals, for example, 732008 + ... + 732095.

It is an arithmetic number, because the mean of its divisors is an integer number (10248728).

Almost surely, 2^64420532 is an apocalyptic number.

It is an amenable number.

64420532 is a deficient number, since it is larger than the sum of its proper divisors (58564204).

64420532 is a wasteful number, since it uses less digits than its factorization.

64420532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464118 (or 1464116 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 64420532 is about 8026.2402156925. The cubic root of 64420532 is about 400.8741963932.

Adding to 64420532 its reverse (23502446), we get a palindrome (87922978).

The spelling of 64420532 in words is "sixty-four million, four hundred twenty thousand, five hundred thirty-two".