64242734 has 4 divisors (see below), whose sum is σ = 96364104. Its totient is φ = 32121366.

The previous prime is 64242733. The next prime is 64242751. The reversal of 64242734 is 43724246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43724246 = 2 ⋅21862123.

It is a self number, because there is not a number n which added to its sum of digits gives 64242734.

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 as a sum of consecutive naturals, namely, 16060682 + ... + 16060685.

It is an arithmetic number, because the mean of its divisors is an integer number (24091026).

Almost surely, 2^64242734 is an apocalyptic number.

64242734 is a deficient number, since it is larger than the sum of its proper divisors (32121370).

64242734 is a wasteful number, since it uses less digits than its factorization.

64242734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32121369.

The product of its digits is 32256, while the sum is 32.

The square root of 64242734 is about 8015.1565174986. The cubic root of 64242734 is about 400.5050578563.

The spelling of 64242734 in words is "sixty-four million, two hundred forty-two thousand, seven hundred thirty-four".