64742630 has 16 divisors (see below), whose sum is σ = 123392160. Its totient is φ = 24373632.

The previous prime is 64742617. The next prime is 64742659. The reversal of 64742630 is 3624746.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 190250 + ... + 190589.

It is an arithmetic number, because the mean of its divisors is an integer number (7712010).

Almost surely, 2^64742630 is an apocalyptic number.

64742630 is a deficient number, since it is larger than the sum of its proper divisors (58649530).

64742630 is a wasteful number, since it uses less digits than its factorization.

64742630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380863.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64742630 is about 8046.2805071660. The cubic root of 64742630 is about 401.5411999633.

The spelling of 64742630 in words is "sixty-four million, seven hundred forty-two thousand, six hundred thirty".