64014920 has 16 divisors (see below), whose sum is σ = 144033660. Its totient is φ = 25605952.

The previous prime is 64014871. The next prime is 64014947. The reversal of 64014920 is 2941046.

It can be written as a sum of positive squares in 2 ways, for example, as 51638596 + 12376324 = 7186^2 + 3518^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64014920.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800147 + ... + 800226.

Almost surely, 2^64014920 is an apocalyptic number.

It is an amenable number.

64014920 is an abundant number, since it is smaller than the sum of its proper divisors (80018740).

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

64014920 is a wasteful number, since it uses less digits than its factorization.

64014920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600384 (or 1600380 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 64014920 is about 8000.9324456591. The cubic root of 64014920 is about 400.0310809182.

Adding to 64014920 its reverse (2941046), we get a palindrome (66955966).

The spelling of 64014920 in words is "sixty-four million, fourteen thousand, nine hundred twenty".