40474109 has 4 divisors (see below), whose sum is σ = 43587516. Its totient is φ = 37360704.

The previous prime is 40474103. The next prime is 40474117. The reversal of 40474109 is 90147404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20448484 + 20025625 = 4522^2 + 4475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40474109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40474103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556684 + ... + 1556709.

It is an arithmetic number, because the mean of its divisors is an integer number (10896879).

Almost surely, 2^40474109 is an apocalyptic number.

It is an amenable number.

40474109 is a deficient number, since it is larger than the sum of its proper divisors (3113407).

40474109 is a wasteful number, since it uses less digits than its factorization.

40474109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113406.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40474109 is about 6361.9265163942. The cubic root of 40474109 is about 343.3410774219.

The spelling of 40474109 in words is "forty million, four hundred seventy-four thousand, one hundred nine".