1404487980 has 648 divisors, whose sum is σ = 5732672400. Its totient is φ = 276369408.

The previous prime is 1404487933. The next prime is 1404487993. The reversal of 1404487980 is 897844041.

1404487980 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 48430606 + ... + 48430634.

Almost surely, 2^1404487980 is an apocalyptic number.

1404487980 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 1404487980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866336200).

1404487980 is an abundant number, since it is smaller than the sum of its proper divisors (4328184420).

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

1404487980 is a wasteful number, since it uses less digits than its factorization.

1404487980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1404487980 is about 37476.4990360626. The cubic root of 1404487980 is about 1119.8830607075.

The spelling of 1404487980 in words is "one billion, four hundred four million, four hundred eighty-seven thousand, nine hundred eighty".