40909266 has 16 divisors (see below), whose sum is σ = 90909600. Its totient is φ = 13636404.

The previous prime is 40909237. The next prime is 40909279. The reversal of 40909266 is 66290904.

It is a self number, because there is not a number n which added to its sum of digits gives 40909266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378736 + ... + 378843.

It is an arithmetic number, because the mean of its divisors is an integer number (5681850).

Almost surely, 2^40909266 is an apocalyptic number.

40909266 is an abundant number, since it is smaller than the sum of its proper divisors (50000334).

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

40909266 is a wasteful number, since it uses less digits than its factorization.

40909266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757590 (or 757584 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 40909266 is about 6396.0351781397. The cubic root of 40909266 is about 344.5671698724.

It can be divided in two parts, 409092 and 66, that multiplied together give a palindrome (27000072).

The spelling of 40909266 in words is "forty million, nine hundred nine thousand, two hundred sixty-six".