40212292 has 12 divisors (see below), whose sum is σ = 70453180. Its totient is φ = 20082816.

The previous prime is 40212281. The next prime is 40212313. The reversal of 40212292 is 29221204.

It can be written as a sum of positive squares in 2 ways, for example, as 14243076 + 25969216 = 3774^2 + 5096^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617 + ... + 9112.

Almost surely, 2^40212292 is an apocalyptic number.

It is an amenable number.

40212292 is a deficient number, since it is larger than the sum of its proper divisors (30240888).

40212292 is a wasteful number, since it uses less digits than its factorization.

40212292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670 (or 11668 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40212292 is about 6341.3162671483. The cubic root of 40212292 is about 342.5991458222.

Adding to 40212292 its reverse (29221204), we get a palindrome (69433496).

It can be divided in two parts, 40212 and 292, that added together give a palindrome (40504).

The spelling of 40212292 in words is "forty million, two hundred twelve thousand, two hundred ninety-two".