1404420120 has 160 divisors (see below), whose sum is σ = 4883511600. Its totient is φ = 361573632.

The previous prime is 1404420079. The next prime is 1404420139. The reversal of 1404420120 is 210244041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1404420093 and 1404420102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 86487 + ... + 101433.

Almost surely, 2^1404420120 is an apocalyptic number.

1404420120 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 1404420120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2441755800).

1404420120 is an abundant number, since it is smaller than the sum of its proper divisors (3479091480).

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

1404420120 is a wasteful number, since it uses less digits than its factorization.

1404420120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14999 (or 14986 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1404420120 is about 37475.5936577394. The cubic root of 1404420120 is about 1119.8650241253.

Adding to 1404420120 its reverse (210244041), we get a palindrome (1614664161).

The spelling of 1404420120 in words is "one billion, four hundred four million, four hundred twenty thousand, one hundred twenty".