40138174 has 16 divisors (see below), whose sum is σ = 63690912. Its totient is φ = 18931968.

The previous prime is 40138169. The next prime is 40138177. The reversal of 40138174 is 47183104.

It is a super-2 number, since 2×40138174² = 3222146024108552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40138177) 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, 2619 + ... + 9334.

It is an arithmetic number, because the mean of its divisors is an integer number (3980682).

Almost surely, 2^40138174 is an apocalyptic number.

40138174 is a deficient number, since it is larger than the sum of its proper divisors (23552738).

40138174 is a wasteful number, since it uses less digits than its factorization.

40138174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12051.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 40138174 is about 6335.4695169340. The cubic root of 40138174 is about 342.3885271344.

The spelling of 40138174 in words is "forty million, one hundred thirty-eight thousand, one hundred seventy-four".