409122970 has 16 divisors (see below), whose sum is σ = 738321480. Its totient is φ = 163226944.

The previous prime is 409122929. The next prime is 409122979. The reversal of 409122970 is 79221904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 218655369 + 190467601 = 14787^2 + 13801^2 .

It is not an unprimeable number, because it can be changed into a prime (409122979) 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 7 ways as a sum of consecutive naturals, for example, 48697 + ... + 56476.

Almost surely, 2^409122970 is an apocalyptic number.

409122970 is a deficient number, since it is larger than the sum of its proper divisors (329198510).

409122970 is a wasteful number, since it uses less digits than its factorization.

409122970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105569.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 409122970 is about 20226.7884252543. The cubic root of 409122970 is about 742.3657970709.

The spelling of 409122970 in words is "four hundred nine million, one hundred twenty-two thousand, nine hundred seventy".