1408821120 has 512 divisors, whose sum is σ = 6012288000. Its totient is φ = 304570368.

The previous prime is 1408821109. The next prime is 1408821151. The reversal of 1408821120 is 211288041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2297934 + ... + 2298546.

It is an arithmetic number, because the mean of its divisors is an integer number (11742750).

Almost surely, 2^1408821120 is an apocalyptic number.

1408821120 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 1408821120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3006144000).

1408821120 is an abundant number, since it is smaller than the sum of its proper divisors (4603466880).

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

1408821120 is a wasteful number, since it uses less digits than its factorization.

1408821120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 1408821120 is about 37534.2659446005. The cubic root of 1408821120 is about 1121.0335697069.

The spelling of 1408821120 in words is "one billion, four hundred eight million, eight hundred twenty-one thousand, one hundred twenty".