409386148940 has 72 divisors (see below), whose sum is σ = 899555243328. Its totient is φ = 156488231680.

The previous prime is 409386148939. The next prime is 409386148967. The reversal of 409386148940 is 49841683904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11652200 + ... + 11687280.

It is an arithmetic number, because the mean of its divisors is an integer number (12493822824).

Almost surely, 2^409386148940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 409386148940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449777621664).

409386148940 is an abundant number, since it is smaller than the sum of its proper divisors (490169094388).

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

409386148940 is a wasteful number, since it uses less digits than its factorization.

409386148940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36239 (or 36214 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 409386148940 in words is "four hundred nine billion, three hundred eighty-six million, one hundred forty-eight thousand, nine hundred forty".