1404000420 has 48 divisors (see below), whose sum is σ = 4162451328. Its totient is φ = 352376320.

The previous prime is 1404000413. The next prime is 1404000443. The reversal of 1404000420 is 240004041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1404000420.

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, 687216 + ... + 689255.

It is an arithmetic number, because the mean of its divisors is an integer number (86717736).

Almost surely, 2^1404000420 is an apocalyptic number.

1404000420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404000420 is an abundant number, since it is smaller than the sum of its proper divisors (2758450908).

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

1404000420 is a wasteful number, since it uses less digits than its factorization.

1404000420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376500 (or 1376498 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1404000420 is about 37469.9935948754. The cubic root of 1404000420 is about 1119.7534587015.

Adding to 1404000420 its reverse (240004041), we get a palindrome (1644004461).

The spelling of 1404000420 in words is "one billion, four hundred four million, four hundred twenty", and thus it is an aban number.