41904909 has 12 divisors (see below), whose sum is σ = 60937500. Its totient is φ = 27748224.

The previous prime is 41904887. The next prime is 41904923. The reversal of 41904909 is 90940914.

It can be written as a sum of positive squares in 2 ways, for example, as 15093225 + 26811684 = 3885^2 + 5178^2 .

It is not a de Polignac number, because 41904909 - 2¹² = 41900813 is a prime.

It is a super-4 number, since 4×41904909⁴ (a number of 32 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41904959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14284 + ... + 16965.

It is an arithmetic number, because the mean of its divisors is an integer number (5078125).

Almost surely, 2^41904909 is an apocalyptic number.

It is an amenable number.

41904909 is a deficient number, since it is larger than the sum of its proper divisors (19032591).

41904909 is a wasteful number, since it uses less digits than its factorization.

41904909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31404 (or 31401 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 41904909 is about 6473.4001112244. The cubic root of 41904909 is about 347.3401338391.

The spelling of 41904909 in words is "forty-one million, nine hundred four thousand, nine hundred nine".