40136704 has 52 divisors (see below), whose sum is σ = 82565280. Its totient is φ = 19496960.

The previous prime is 40136687. The next prime is 40136713. The reversal of 40136704 is 40763104.

It is a super-2 number, since 2×40136704² = 3221910015967232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167817 + ... + 168055.

Almost surely, 2^40136704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40136704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41282640).

40136704 is an abundant number, since it is smaller than the sum of its proper divisors (42428576).

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

40136704 is an equidigital number, since it uses as much as digits as its factorization.

40136704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 40136704 is about 6335.3535023706. The cubic root of 40136704 is about 342.3843472624.

Adding to 40136704 its reverse (40763104), we get a palindrome (80899808).

The spelling of 40136704 in words is "forty million, one hundred thirty-six thousand, seven hundred four".