64420522 has 8 divisors (see below), whose sum is σ = 96667200. Its totient is φ = 32198124.

The previous prime is 64420519. The next prime is 64420537. The reversal of 64420522 is 22502446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 3729 + ... + 11947.

It is an arithmetic number, because the mean of its divisors is an integer number (12083400).

Almost surely, 2^64420522 is an apocalyptic number.

64420522 is a deficient number, since it is larger than the sum of its proper divisors (32246678).

64420522 is a wasteful number, since it uses less digits than its factorization.

64420522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12140.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 64420522 is about 8026.2395927358. The cubic root of 64420522 is about 400.8741756506.

Adding to 64420522 its reverse (22502446), we get a palindrome (86922968).

The spelling of 64420522 in words is "sixty-four million, four hundred twenty thousand, five hundred twenty-two".