42710644 has 12 divisors (see below), whose sum is σ = 74938500. Its totient is φ = 21299648.

The previous prime is 42710641. The next prime is 42710663. The reversal of 42710644 is 44601724.

It can be written as a sum of positive squares in 2 ways, for example, as 20976400 + 21734244 = 4580^2 + 4662^2 .

It is a super-2 number, since 2×42710644² = 3648398221789472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42710641) 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, 12169 + ... + 15280.

It is an arithmetic number, because the mean of its divisors is an integer number (6244875).

Almost surely, 2^42710644 is an apocalyptic number.

It is an amenable number.

42710644 is a deficient number, since it is larger than the sum of its proper divisors (32227856).

42710644 is a wasteful number, since it uses less digits than its factorization.

42710644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27842 (or 27840 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 42710644 is about 6535.3380937791. The cubic root of 42710644 is about 349.5522001056.

The spelling of 42710644 in words is "forty-two million, seven hundred ten thousand, six hundred forty-four".