404460240340 has 72 divisors (see below), whose sum is σ = 920194974720. Its totient is φ = 149263380864.

The previous prime is 404460240329. The next prime is 404460240341. The reversal of 404460240340 is 43042064404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404460240341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6862477 + ... + 6921163.

It is an arithmetic number, because the mean of its divisors is an integer number (12780485760).

Almost surely, 2^404460240340 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 404460240340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460097487360).

404460240340 is an abundant number, since it is smaller than the sum of its proper divisors (515734734380).

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

404460240340 is a wasteful number, since it uses less digits than its factorization.

404460240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60761 (or 60746 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

The spelling of 404460240340 in words is "four hundred four billion, four hundred sixty million, two hundred forty thousand, three hundred forty".