40909099 has 8 divisors (see below), whose sum is σ = 51003648. Its totient is φ = 31877160.

The previous prime is 40909097. The next prime is 40909133. The reversal of 40909099 is 99090904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40909099 - 2¹ = 40909097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40909097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265567 + ... + 265720.

It is an arithmetic number, because the mean of its divisors is an integer number (6375456).

Almost surely, 2^40909099 is an apocalyptic number.

40909099 is a deficient number, since it is larger than the sum of its proper divisors (10094549).

40909099 is a wasteful number, since it uses less digits than its factorization.

40909099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531305.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 40909099 is about 6396.0221231637. The cubic root of 40909099 is about 344.5667010072.

The spelling of 40909099 in words is "forty million, nine hundred nine thousand, ninety-nine".