42980739 has 4 divisors (see below), whose sum is σ = 57307656. Its totient is φ = 28653824.

The previous prime is 42980731. The next prime is 42980747. The reversal of 42980739 is 93708924.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42980731) and next prime (42980747).

It is a cyclic number.

It is not a de Polignac number, because 42980739 - 2³ = 42980731 is a prime.

It is a super-2 number, since 2×42980739² = 3694687849972242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42980739.

It is not an unprimeable number, because it can be changed into a prime (42980731) 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, 7163454 + ... + 7163459.

It is an arithmetic number, because the mean of its divisors is an integer number (14326914).

Almost surely, 2^42980739 is an apocalyptic number.

42980739 is a deficient number, since it is larger than the sum of its proper divisors (14326917).

42980739 is a wasteful number, since it uses less digits than its factorization.

42980739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14326916.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 42980739 is about 6555.9697223218. The cubic root of 42980739 is about 350.2874889628.

The spelling of 42980739 in words is "forty-two million, nine hundred eighty thousand, seven hundred thirty-nine".