64630542 has 8 divisors (see below), whose sum is σ = 129261096. Its totient is φ = 21543512.

The previous prime is 64630541. The next prime is 64630603. The reversal of 64630542 is 24503646.

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

64630542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64630541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5385873 + ... + 5385884.

It is an arithmetic number, because the mean of its divisors is an integer number (16157637).

Almost surely, 2^64630542 is an apocalyptic number.

64630542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64630542 is a wasteful number, since it uses less digits than its factorization.

64630542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771762.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 64630542 is about 8039.3122840203. The cubic root of 64630542 is about 401.3093385715.

The spelling of 64630542 in words is "sixty-four million, six hundred thirty thousand, five hundred forty-two".