40136744 has 8 divisors (see below), whose sum is σ = 75256410. Its totient is φ = 20068368.

The previous prime is 40136713. The next prime is 40136773. The reversal of 40136744 is 44763104.

It can be written as a sum of positive squares in only one way, i.e., 38068900 + 2067844 = 6170^2 + 1438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40136744² = 3221916437843072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508539 + ... + 2508554.

Almost surely, 2^40136744 is an apocalyptic number.

It is an amenable number.

40136744 is a deficient number, since it is larger than the sum of its proper divisors (35119666).

40136744 is a wasteful number, since it uses less digits than its factorization.

40136744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017099 (or 5017095 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40136744 is about 6335.3566592576. The cubic root of 40136744 is about 342.3844610018.

Adding to 40136744 its reverse (44763104), we get a palindrome (84899848).

The spelling of 40136744 in words is "forty million, one hundred thirty-six thousand, seven hundred forty-four".