64242736 has 20 divisors (see below), whose sum is σ = 127507464. Its totient is φ = 31337600.

The previous prime is 64242733. The next prime is 64242751. The reversal of 64242736 is 63724246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64242733) 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, 48310 + ... + 49621.

Almost surely, 2^64242736 is an apocalyptic number.

It is an amenable number.

64242736 is a deficient number, since it is larger than the sum of its proper divisors (63264728).

64242736 is a wasteful number, since it uses less digits than its factorization.

64242736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97980 (or 97974 counting only the distinct ones).

The product of its digits is 48384, while the sum is 34.

The square root of 64242736 is about 8015.1566422622. The cubic root of 64242736 is about 400.5050620125.

The spelling of 64242736 in words is "sixty-four million, two hundred forty-two thousand, seven hundred thirty-six".