42940146 has 16 divisors (see below), whose sum is σ = 88651008. Its totient is φ = 13851600.

The previous prime is 42940111. The next prime is 42940153. The reversal of 42940146 is 64104924.

It is a super-2 number, since 2×42940146² = 3687712277002632, which contains 22 as substring.

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, 115245 + ... + 115616.

It is an arithmetic number, because the mean of its divisors is an integer number (5540688).

Almost surely, 2^42940146 is an apocalyptic number.

42940146 is an abundant number, since it is smaller than the sum of its proper divisors (45710862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42940146 is a wasteful number, since it uses less digits than its factorization.

42940146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230897.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42940146 is about 6552.8731103234. The cubic root of 42940146 is about 350.1771783202.

The spelling of 42940146 in words is "forty-two million, nine hundred forty thousand, one hundred forty-six".