40263992 has 16 divisors (see below), whose sum is σ = 77535960. Its totient is φ = 19587744.

The previous prime is 40263989. The next prime is 40263997. The reversal of 40263992 is 29936204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40263997) 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 3 ways as a sum of consecutive naturals, for example, 67718 + ... + 68309.

Almost surely, 2^40263992 is an apocalyptic number.

It is an amenable number.

40263992 is a deficient number, since it is larger than the sum of its proper divisors (37271968).

40263992 is a wasteful number, since it uses less digits than its factorization.

40263992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136070 (or 136066 counting only the distinct ones).

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

The square root of 40263992 is about 6345.3913984876. The cubic root of 40263992 is about 342.7459068379.

The spelling of 40263992 in words is "forty million, two hundred sixty-three thousand, nine hundred ninety-two".