1404242420 has 48 divisors (see below), whose sum is σ = 3433788288. Its totient is φ = 472368000.

The previous prime is 1404242407. The next prime is 1404242431. The reversal of 1404242420 is 242424041.

It is a congruent number.

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, 87206 + ... + 102045.

It is an arithmetic number, because the mean of its divisors is an integer number (71537256).

Almost surely, 2^1404242420 is an apocalyptic number.

1404242420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404242420 is an abundant number, since it is smaller than the sum of its proper divisors (2029545868).

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

1404242420 is a wasteful number, since it uses less digits than its factorization.

1404242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189320 (or 189318 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1404242420 is about 37473.2227063539. Note that the first 3 decimals coincide. The cubic root of 1404242420 is about 1119.8177902989.

Adding to 1404242420 its reverse (242424041), we get a palindrome (1646666461).

The spelling of 1404242420 in words is "one billion, four hundred four million, two hundred forty-two thousand, four hundred twenty".