64901642 has 32 divisors (see below), whose sum is σ = 108041472. Its totient is φ = 29052864.

The previous prime is 64901579. The next prime is 64901651. The reversal of 64901642 is 24610946.

It is a happy number.

64901642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64901599 and 64901608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211253 + ... + 211559.

It is an arithmetic number, because the mean of its divisors is an integer number (3376296).

Almost surely, 2^64901642 is an apocalyptic number.

64901642 is a deficient number, since it is larger than the sum of its proper divisors (43139830).

64901642 is a wasteful number, since it uses less digits than its factorization.

64901642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 64901642 is about 8056.1555347448. The cubic root of 64901642 is about 401.8696680705.

The spelling of 64901642 in words is "sixty-four million, nine hundred one thousand, six hundred forty-two".