409090909086 has 24 divisors (see below), whose sum is σ = 886375605024. Its totient is φ = 136361795040.

The previous prime is 409090909081. The next prime is 409090909103. The reversal of 409090909086 is 680909090904.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409090909081) 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, 2156226 + ... + 2338266.

It is an arithmetic number, because the mean of its divisors is an integer number (36932316876).

Almost surely, 2^409090909086 is an apocalyptic number.

409090909086 is an abundant number, since it is smaller than the sum of its proper divisors (477284695938).

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

409090909086 is a wasteful number, since it uses less digits than its factorization.

409090909086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306896 (or 306893 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 409090909086 in words is "four hundred nine billion, ninety million, nine hundred nine thousand, eighty-six".