40136264 has 32 divisors (see below), whose sum is σ = 87635520. Its totient is φ = 16875456.

The previous prime is 40136263. The next prime is 40136267. The reversal of 40136264 is 46263104.

It is a super-2 number, since 2×40136264² = 3221839375755392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40136263) 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 7 ways as a sum of consecutive naturals, for example, 3794 + ... + 9729.

It is an arithmetic number, because the mean of its divisors is an integer number (2738610).

Almost surely, 2^40136264 is an apocalyptic number.

It is an amenable number.

40136264 is an abundant number, since it is smaller than the sum of its proper divisors (47499256).

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

40136264 is a wasteful number, since it uses less digits than its factorization.

40136264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13589 (or 13585 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40136264 is about 6335.3187765100. The cubic root of 40136264 is about 342.3830961245.

Adding to 40136264 its reverse (46263104), we get a palindrome (86399368).

The spelling of 40136264 in words is "forty million, one hundred thirty-six thousand, two hundred sixty-four".