42740612 has 6 divisors (see below), whose sum is σ = 74796078. Its totient is φ = 21370304.

The previous prime is 42740611. The next prime is 42740617. The reversal of 42740612 is 21604724.

It can be written as a sum of positive squares in only one way, i.e., 42719296 + 21316 = 6536^2 + 146^2 .

It is not an unprimeable number, because it can be changed into a prime (42740611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5342573 + ... + 5342580.

It is an arithmetic number, because the mean of its divisors is an integer number (12466013).

Almost surely, 2^42740612 is an apocalyptic number.

It is an amenable number.

42740612 is a deficient number, since it is larger than the sum of its proper divisors (32055466).

42740612 is a wasteful number, since it uses less digits than its factorization.

42740612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10685157 (or 10685155 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 42740612 is about 6537.6304575894. The cubic root of 42740612 is about 349.6339356348.

The spelling of 42740612 in words is "forty-two million, seven hundred forty thousand, six hundred twelve".