40042586 has 8 divisors (see below), whose sum is σ = 62675424. Its totient is φ = 19150780.

The previous prime is 40042579. The next prime is 40042619. The reversal of 40042586 is 68524004.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435200 + ... + 435291.

It is an arithmetic number, because the mean of its divisors is an integer number (7834428).

Almost surely, 2^40042586 is an apocalyptic number.

40042586 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40042586 is a deficient number, since it is larger than the sum of its proper divisors (22632838).

40042586 is a wasteful number, since it uses less digits than its factorization.

40042586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870516.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 40042586 is about 6327.9211436300. The cubic root of 40042586 is about 342.1165146820.

The spelling of 40042586 in words is "forty million, forty-two thousand, five hundred eighty-six".