42910090 has 16 divisors (see below), whose sum is σ = 77332320. Its totient is φ = 17143120.

The previous prime is 42910069. The next prime is 42910099. The reversal of 42910090 is 9001924.

It is not an unprimeable number, because it can be changed into a prime (42910099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8085 + ... + 12295.

It is an arithmetic number, because the mean of its divisors is an integer number (4833270).

Almost surely, 2^42910090 is an apocalyptic number.

42910090 is a deficient number, since it is larger than the sum of its proper divisors (34422230).

42910090 is a wasteful number, since it uses less digits than its factorization.

42910090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 42910090 is about 6550.5793636899. The cubic root of 42910090 is about 350.0954569565.

The spelling of 42910090 in words is "forty-two million, nine hundred ten thousand, ninety".