64393242 has 32 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 20140848.

The previous prime is 64393211. The next prime is 64393289. The reversal of 64393242 is 24239346.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9559 + ... + 14837.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 2^64393242 is an apocalyptic number.

64393242 is an abundant number, since it is smaller than the sum of its proper divisors (72464358).

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

64393242 is a wasteful number, since it uses less digits than its factorization.

64393242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410.

The product of its digits is 31104, while the sum is 33.

The square root of 64393242 is about 8024.5399868154. The cubic root of 64393242 is about 400.8175819276.

The spelling of 64393242 in words is "sixty-four million, three hundred ninety-three thousand, two hundred forty-two".