1421331342 has 32 divisors (see below), whose sum is σ = 3046159872. Its totient is φ = 440532864.

The previous prime is 1421331319. The next prime is 1421331361. The reversal of 1421331342 is 2431331241.

It is a happy number.

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, 75478 + ... + 92409.

It is an arithmetic number, because the mean of its divisors is an integer number (95192496).

Almost surely, 2^1421331342 is an apocalyptic number.

1421331342 is an abundant number, since it is smaller than the sum of its proper divisors (1624828530).

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

1421331342 is a wasteful number, since it uses less digits than its factorization.

1421331342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167992.

The product of its digits is 1728, while the sum is 24.

The square root of 1421331342 is about 37700.5482984001. The cubic root of 1421331342 is about 1124.3420263106.

Adding to 1421331342 its reverse (2431331241), we get a palindrome (3852662583).

The spelling of 1421331342 in words is "one billion, four hundred twenty-one million, three hundred thirty-one thousand, three hundred forty-two".