42980690 has 8 divisors (see below), whose sum is σ = 77365260. Its totient is φ = 17192272.

The previous prime is 42980687. The next prime is 42980713. The reversal of 42980690 is 9608924.

It can be written as a sum of positive squares in 2 ways, for example, as 40972801 + 2007889 = 6401^2 + 1417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42980690² = 3694679425752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2149025 + ... + 2149044.

Almost surely, 2^42980690 is an apocalyptic number.

42980690 is a deficient number, since it is larger than the sum of its proper divisors (34384570).

42980690 is a wasteful number, since it uses less digits than its factorization.

42980690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298076.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 42980690 is about 6555.9659852687. The cubic root of 42980690 is about 350.2873558482.

The spelling of 42980690 in words is "forty-two million, nine hundred eighty thousand, six hundred ninety".