409274225 has 6 divisors (see below), whose sum is σ = 507500070. Its totient is φ = 327419360.

The previous prime is 409274221. The next prime is 409274233. The reversal of 409274225 is 522472904.

It can be written as a sum of positive squares in 3 ways, for example, as 45265984 + 364008241 = 6728^2 + 19079^2 .

It is not a de Polignac number, because 409274225 - 2² = 409274221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (409274221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8185460 + ... + 8185509.

It is an arithmetic number, because the mean of its divisors is an integer number (84583345).

Almost surely, 2^409274225 is an apocalyptic number.

It is an amenable number.

409274225 is a deficient number, since it is larger than the sum of its proper divisors (98225845).

409274225 is a wasteful number, since it uses less digits than its factorization.

409274225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16370979 (or 16370974 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 409274225 is about 20230.5270569009. The cubic root of 409274225 is about 742.4572713643.

The spelling of 409274225 in words is "four hundred nine million, two hundred seventy-four thousand, two hundred twenty-five".