42693736 has 8 divisors (see below), whose sum is σ = 80050770. Its totient is φ = 21346864.

The previous prime is 42693731. The next prime is 42693787. The reversal of 42693736 is 63739624.

It can be written as a sum of positive squares in only one way, i.e., 29224836 + 13468900 = 5406^2 + 3670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42693731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2668351 + ... + 2668366.

Almost surely, 2^42693736 is an apocalyptic number.

It is an amenable number.

42693736 is a deficient number, since it is larger than the sum of its proper divisors (37357034).

42693736 is a wasteful number, since it uses less digits than its factorization.

42693736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336723 (or 5336719 counting only the distinct ones).

The product of its digits is 163296, while the sum is 40.

The square root of 42693736 is about 6534.0443830755. The cubic root of 42693736 is about 349.5060678997.

The spelling of 42693736 in words is "forty-two million, six hundred ninety-three thousand, seven hundred thirty-six".