1404390113280 has 3072 divisors, whose sum is σ = 6885264384000. Its totient is φ = 267544166400.

The previous prime is 1404390113279. The next prime is 1404390113309. The reversal of 1404390113280 is 823110934041.

1404390113280 is a `hidden beast` number, since 14 + 0 + 439 + 0 + 1 + 132 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (3072).

It is a super-2 number, since 2×1404390113280² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45302906865 + ... + 45302906895.

It is an arithmetic number, because the mean of its divisors is an integer number (2241297000).

Almost surely, 2^{1404390113280} is an apocalyptic number.

1404390113280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404390113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3442632192000).

1404390113280 is an abundant number, since it is smaller than the sum of its proper divisors (5480874270720).

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

1404390113280 is a wasteful number, since it uses less digits than its factorization.

1404390113280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 1404390113280 in words is "one trillion, four hundred four billion, three hundred ninety million, one hundred thirteen thousand, two hundred eighty".