42794690 has 16 divisors (see below), whose sum is σ = 77595192. Its totient is φ = 16992384.

The previous prime is 42794677. The next prime is 42794767. The reversal of 42794690 is 9649724.

It can be written as a sum of positive squares in 4 ways, for example, as 41049649 + 1745041 = 6407^2 + 1321^2 .

It is a super-2 number, since 2×42794690² = 3662770984392200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14249 + ... + 16988.

Almost surely, 2^42794690 is an apocalyptic number.

42794690 is a deficient number, since it is larger than the sum of its proper divisors (34800502).

42794690 is a wasteful number, since it uses less digits than its factorization.

42794690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31381.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 42794690 is about 6541.7650523387. The cubic root of 42794690 is about 349.7813328009.

The spelling of 42794690 in words is "forty-two million, seven hundred ninety-four thousand, six hundred ninety".