40136814 has 12 divisors (see below), whose sum is σ = 86963136. Its totient is φ = 13378932.

The previous prime is 40136807. The next prime is 40136821. The reversal of 40136814 is 41863104.

It is an interprime number because it is at equal distance from previous prime (40136807) and next prime (40136821).

It is a super-2 number, since 2×40136814² = 3221927676141192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114894 + ... + 1114929.

It is an arithmetic number, because the mean of its divisors is an integer number (7246928).

Almost surely, 2^40136814 is an apocalyptic number.

40136814 is an abundant number, since it is smaller than the sum of its proper divisors (46826322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40136814 is a wasteful number, since it uses less digits than its factorization.

40136814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229831 (or 2229828 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 40136814 is about 6335.3621838061. The cubic root of 40136814 is about 342.3846600455.

Adding to 40136814 its reverse (41863104), we get a palindrome (81999918).

The spelling of 40136814 in words is "forty million, one hundred thirty-six thousand, eight hundred fourteen".