42090956 has 6 divisors (see below), whose sum is σ = 73659180. Its totient is φ = 21045476.

The previous prime is 42090949. The next prime is 42090973. The reversal of 42090956 is 65909024.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5261366 + ... + 5261373.

It is an arithmetic number, because the mean of its divisors is an integer number (12276530).

Almost surely, 2^42090956 is an apocalyptic number.

It is an amenable number.

42090956 is a deficient number, since it is larger than the sum of its proper divisors (31568224).

42090956 is a wasteful number, since it uses less digits than its factorization.

42090956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10522743 (or 10522741 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 42090956 is about 6487.7543110078. The cubic root of 42090956 is about 347.8534085540.

The spelling of 42090956 in words is "forty-two million, ninety thousand, nine hundred fifty-six".