409271946 has 16 divisors (see below), whose sum is σ = 819350208. Its totient is φ = 136289600.

The previous prime is 409271939. The next prime is 409271969. The reversal of 409271946 is 649172904.

It is a junction number, because it is equal to n+sod(n) for n = 409271898 and 409271907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26895 + ... + 39266.

It is an arithmetic number, because the mean of its divisors is an integer number (51209388).

Almost surely, 2^409271946 is an apocalyptic number.

409271946 is an abundant number, since it is smaller than the sum of its proper divisors (410078262).

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

409271946 is a wasteful number, since it uses less digits than its factorization.

409271946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67197.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 409271946 is about 20230.4707310532. The cubic root of 409271946 is about 742.4558932636.

The spelling of 409271946 in words is "four hundred nine million, two hundred seventy-one thousand, nine hundred forty-six".