409426240028 has 12 divisors (see below), whose sum is σ = 771610990920. Its totient is φ = 188965956912.

The previous prime is 409426240021. The next prime is 409426240051. The reversal of 409426240028 is 820042624904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409426240021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3936790718 + ... + 3936790821.

It is an arithmetic number, because the mean of its divisors is an integer number (64300915910).

Almost surely, 2^409426240028 is an apocalyptic number.

It is an amenable number.

409426240028 is a deficient number, since it is larger than the sum of its proper divisors (362184750892).

409426240028 is a wasteful number, since it uses less digits than its factorization.

409426240028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873581556 (or 7873581554 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 409426240028 in words is "four hundred nine billion, four hundred twenty-six million, two hundred forty thousand, twenty-eight".