40936690 has 16 divisors (see below), whose sum is σ = 76227480. Its totient is φ = 15809920.

The previous prime is 40936669. The next prime is 40936691. The reversal of 40936690 is 9663904.

It can be written as a sum of positive squares in 4 ways, for example, as 19527561 + 21409129 = 4419^2 + 4627^2 .

It is a super-2 number, since 2×40936690² = 3351625176312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40936691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70291 + ... + 70870.

Almost surely, 2^40936690 is an apocalyptic number.

40936690 is a deficient number, since it is larger than the sum of its proper divisors (35290790).

40936690 is a wasteful number, since it uses less digits than its factorization.

40936690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141197.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 40936690 is about 6398.1786470839. The cubic root of 40936690 is about 344.6441475376.

The spelling of 40936690 in words is "forty million, nine hundred thirty-six thousand, six hundred ninety".