40920292 has 36 divisors (see below), whose sum is σ = 88209324. Its totient is φ = 16504320.

The previous prime is 40920283. The next prime is 40920307. The reversal of 40920292 is 29202904.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 7001316 = 5824^2 + 2646^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 40920292.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2809 + ... + 9472.

It is an arithmetic number, because the mean of its divisors is an integer number (2450259).

Almost surely, 2^40920292 is an apocalyptic number.

It is an amenable number.

40920292 is an abundant number, since it is smaller than the sum of its proper divisors (47289032).

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

40920292 is a wasteful number, since it uses less digits than its factorization.

40920292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12316 (or 12307 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40920292 is about 6396.8970602942. The cubic root of 40920292 is about 344.5981233842.

The spelling of 40920292 in words is "forty million, nine hundred twenty thousand, two hundred ninety-two".