409025670 has 16 divisors (see below), whose sum is σ = 981661680. Its totient is φ = 109073504.

The previous prime is 409025653. The next prime is 409025671. The reversal of 409025670 is 76520904.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409025671) 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, 6817065 + ... + 6817124.

It is an arithmetic number, because the mean of its divisors is an integer number (61353855).

Almost surely, 2^409025670 is an apocalyptic number.

409025670 is an abundant number, since it is smaller than the sum of its proper divisors (572636010).

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

409025670 is a wasteful number, since it uses less digits than its factorization.

409025670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13634199.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 409025670 is about 20224.3830561033. The cubic root of 409025670 is about 742.3069411568.

The spelling of 409025670 in words is "four hundred nine million, twenty-five thousand, six hundred seventy".