40992208 has 20 divisors (see below), whose sum is σ = 80609920. Its totient is φ = 20189664.

The previous prime is 40992191. The next prime is 40992227. The reversal of 40992208 is 80229904.

It is a super-2 number, since 2×40992208² = 3360722233430528, which contains 22 as substring.

It is a congruent number.

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, 18048 + ... + 20191.

It is an arithmetic number, because the mean of its divisors is an integer number (4030496).

Almost surely, 2^40992208 is an apocalyptic number.

It is an amenable number.

40992208 is a deficient number, since it is larger than the sum of its proper divisors (39617712).

40992208 is a wasteful number, since it uses less digits than its factorization.

40992208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38314 (or 38308 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 40992208 is about 6402.5157555448. The cubic root of 40992208 is about 344.7998783383.

Subtracting 40992208 from its reverse (80229904), we obtain a square (39237696 = 6264²).

The spelling of 40992208 in words is "forty million, nine hundred ninety-two thousand, two hundred eight".