404012340333440 has 128 divisors (see below), whose sum is σ = 1022672661242400. Its totient is φ = 152096320585728.

The previous prime is 404012340333421. The next prime is 404012340333451. The reversal of 404012340333440 is 44333043210404.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×404012340333440² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404012340333440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768158876 + ... + 768684644.

Almost surely, 2^{404012340333440} is an apocalyptic number.

404012340333440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404012340333440 is an abundant number, since it is smaller than the sum of its proper divisors (618660320908960).

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

404012340333440 is a wasteful number, since it uses less digits than its factorization.

404012340333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596432 (or 596420 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 404012340333440 its reverse (44333043210404), we get a palindrome (448345383543844).

The spelling of 404012340333440 in words is "four hundred four trillion, twelve billion, three hundred forty million, three hundred thirty-three thousand, four hundred forty".