1421042504 has 16 divisors (see below), whose sum is σ = 3045091200. Its totient is φ = 609018192.

The previous prime is 1421042503. The next prime is 1421042507. The reversal of 1421042504 is 4052401241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421042504.

It is not an unprimeable number, because it can be changed into a prime (1421042503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12687824 + ... + 12687935.

It is an arithmetic number, because the mean of its divisors is an integer number (190318200).

Almost surely, 2^1421042504 is an apocalyptic number.

1421042504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1421042504 is an abundant number, since it is smaller than the sum of its proper divisors (1624048696).

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

1421042504 is a wasteful number, since it uses less digits than its factorization.

1421042504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25375772 (or 25375768 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1421042504 is about 37696.7174167725. The cubic root of 1421042504 is about 1124.2658595287.

Adding to 1421042504 its reverse (4052401241), we get a palindrome (5473443745).

The spelling of 1421042504 in words is "one billion, four hundred twenty-one million, forty-two thousand, five hundred four".