64073742 has 16 divisors (see below), whose sum is σ = 128709840. Its totient is φ = 21264192.

The previous prime is 64073717. The next prime is 64073743. The reversal of 64073742 is 24737046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64073743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21943 + ... + 24690.

It is an arithmetic number, because the mean of its divisors is an integer number (8044365).

Almost surely, 2^64073742 is an apocalyptic number.

64073742 is an abundant number, since it is smaller than the sum of its proper divisors (64636098).

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

64073742 is a wasteful number, since it uses less digits than its factorization.

64073742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46867.

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 64073742 is about 8004.6075481562. The cubic root of 64073742 is about 400.1535701996.

The spelling of 64073742 in words is "sixty-four million, seventy-three thousand, seven hundred forty-two".