40961636 has 12 divisors (see below), whose sum is σ = 75899628. Its totient is φ = 19276032.

The previous prime is 40961623. The next prime is 40961639. The reversal of 40961636 is 63616904.

It can be written as a sum of positive squares in 2 ways, for example, as 30360100 + 10601536 = 5510^2 + 3256^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40961596 and 40961605.

It is not an unprimeable number, because it can be changed into a prime (40961639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301121 + ... + 301256.

It is an arithmetic number, because the mean of its divisors is an integer number (6324969).

Almost surely, 2^40961636 is an apocalyptic number.

It is an amenable number.

40961636 is a deficient number, since it is larger than the sum of its proper divisors (34937992).

40961636 is a wasteful number, since it uses less digits than its factorization.

40961636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602398 (or 602396 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 40961636 is about 6400.1278112238. The cubic root of 40961636 is about 344.7141397387.

The spelling of 40961636 in words is "forty million, nine hundred sixty-one thousand, six hundred thirty-six".