64580742 has 12 divisors (see below), whose sum is σ = 139924980. Its totient is φ = 21526908.

The previous prime is 64580731. The next prime is 64580749. The reversal of 64580742 is 24708546.

64580742 is a `hidden beast` number, since 6 + 4 + 580 + 74 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 64580697 and 64580706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64580749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1793892 + ... + 1793927.

It is an arithmetic number, because the mean of its divisors is an integer number (11660415).

Almost surely, 2^64580742 is an apocalyptic number.

64580742 is an abundant number, since it is smaller than the sum of its proper divisors (75344238).

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

64580742 is a wasteful number, since it uses less digits than its factorization.

64580742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587827 (or 3587824 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 64580742 is about 8036.2144072940. The cubic root of 64580742 is about 401.2062379850.

The spelling of 64580742 in words is "sixty-four million, five hundred eighty thousand, seven hundred forty-two".