1421140434 has 48 divisors (see below), whose sum is σ = 3362407200. Its totient is φ = 399153216.

The previous prime is 1421140429. The next prime is 1421140451. The reversal of 1421140434 is 4340411241.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23619 + ... + 58310.

It is an arithmetic number, because the mean of its divisors is an integer number (70050150).

Almost surely, 2^1421140434 is an apocalyptic number.

1421140434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1421140434 is an abundant number, since it is smaller than the sum of its proper divisors (1941266766).

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

1421140434 is a wasteful number, since it uses less digits than its factorization.

1421140434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82007 (or 82000 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1421140434 is about 37698.0163138593. The cubic root of 1421140434 is about 1124.2916848943.

Adding to 1421140434 its reverse (4340411241), we get a palindrome (5761551675).

It can be divided in two parts, 14211 and 40434, that added together give a palindrome (54645).

The spelling of 1421140434 in words is "one billion, four hundred twenty-one million, one hundred forty thousand, four hundred thirty-four".