40900392 has 96 divisors (see below), whose sum is σ = 122620680. Its totient is φ = 12234240.

The previous prime is 40900337. The next prime is 40900403. The reversal of 40900392 is 29300904.

It can be written as a sum of positive squares in 4 ways, for example, as 40373316 + 527076 = 6354^2 + 726^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34042 + ... + 35222.

Almost surely, 2^40900392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40900392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61310340).

40900392 is an abundant number, since it is smaller than the sum of its proper divisors (81720288).

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

40900392 is a wasteful number, since it uses less digits than its factorization.

40900392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 40900392 is about 6395.3414295095. The cubic root of 40900392 is about 344.5422536739.

The spelling of 40900392 in words is "forty million, nine hundred thousand, three hundred ninety-two".