409949946 has 24 divisors (see below), whose sum is σ = 1015114464. Its totient is φ = 117128520.

The previous prime is 409949941. The next prime is 409949971. The reversal of 409949946 is 649949904.

It is a junction number, because it is equal to n+sod(n) for n = 409949892 and 409949901.

It is not an unprimeable number, because it can be changed into a prime (409949941) 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, 1626660 + ... + 1626911.

It is an arithmetic number, because the mean of its divisors is an integer number (42296436).

Almost surely, 2^409949946 is an apocalyptic number.

409949946 is an abundant number, since it is smaller than the sum of its proper divisors (605164518).

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

409949946 is a wasteful number, since it uses less digits than its factorization.

409949946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253586 (or 3253583 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 409949946 is about 20247.2206981600. The cubic root of 409949946 is about 742.8656512797.

It can be divided in two parts, 4099 and 49946, that added together give a palindrome (54045).

The spelling of 409949946 in words is "four hundred nine million, nine hundred forty-nine thousand, nine hundred forty-six".