40136258 has 8 divisors (see below), whose sum is σ = 62146560. Its totient is φ = 19420740.

The previous prime is 40136251. The next prime is 40136263. The reversal of 40136258 is 85263104.

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

It is a super-2 number, since 2×40136258² = 3221838412485128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40136258.

It is not an unprimeable number, because it can be changed into a prime (40136251) 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 3 ways as a sum of consecutive naturals, for example, 323618 + ... + 323741.

It is an arithmetic number, because the mean of its divisors is an integer number (7768320).

Almost surely, 2^40136258 is an apocalyptic number.

40136258 is a deficient number, since it is larger than the sum of its proper divisors (22010302).

40136258 is a wasteful number, since it uses less digits than its factorization.

40136258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647392.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40136258 is about 6335.3183029742. The cubic root of 40136258 is about 342.3830790634.

The spelling of 40136258 in words is "forty million, one hundred thirty-six thousand, two hundred fifty-eight".