409046949 has 8 divisors (see below), whose sum is σ = 605995520. Its totient is φ = 272697948.

The previous prime is 409046947. The next prime is 409046971. The reversal of 409046949 is 949640904.

It is not a de Polignac number, because 409046949 - 2¹ = 409046947 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 (409046947) 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, 7574917 + ... + 7574970.

It is an arithmetic number, because the mean of its divisors is an integer number (75749440).

Almost surely, 2^409046949 is an apocalyptic number.

It is an amenable number.

409046949 is a deficient number, since it is larger than the sum of its proper divisors (196948571).

409046949 is a wasteful number, since it uses less digits than its factorization.

409046949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15149896 (or 15149890 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 409046949 is about 20224.9091221691. The cubic root of 409046949 is about 742.3198134341.

The spelling of 409046949 in words is "four hundred nine million, forty-six thousand, nine hundred forty-nine".