42287090 has 16 divisors (see below), whose sum is σ = 76586688. Its totient is φ = 16810416.

The previous prime is 42287083. The next prime is 42287093. The reversal of 42287090 is 9078224.

It is not an unprimeable number, because it can be changed into a prime (42287093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11342 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (4786668).

Almost surely, 2^42287090 is an apocalyptic number.

42287090 is a deficient number, since it is larger than the sum of its proper divisors (34299598).

42287090 is a wasteful number, since it uses less digits than its factorization.

42287090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26113.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 42287090 is about 6502.8524510402. The cubic root of 42287090 is about 348.3928766345.

The spelling of 42287090 in words is "forty-two million, two hundred eighty-seven thousand, ninety".