42940670 has 8 divisors (see below), whose sum is σ = 77293224. Its totient is φ = 17176264.

The previous prime is 42940663. The next prime is 42940679. The reversal of 42940670 is 7604924.

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

It is a super-2 number, since 2×42940670² = 3687802280097800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42940679) 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, 2147024 + ... + 2147043.

It is an arithmetic number, because the mean of its divisors is an integer number (9661653).

Almost surely, 2^42940670 is an apocalyptic number.

42940670 is a deficient number, since it is larger than the sum of its proper divisors (34352554).

42940670 is a wasteful number, since it uses less digits than its factorization.

42940670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294074.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 42940670 is about 6552.9130926634. The cubic root of 42940670 is about 350.1786027222.

The spelling of 42940670 in words is "forty-two million, nine hundred forty thousand, six hundred seventy".