1421312344 has 8 divisors (see below), whose sum is σ = 2664960660. Its totient is φ = 710656168.

The previous prime is 1421312329. The next prime is 1421312369. The reversal of 1421312344 is 4432131241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88832014 + ... + 88832029.

Almost surely, 2^1421312344 is an apocalyptic number.

It is an amenable number.

1421312344 is a deficient number, since it is larger than the sum of its proper divisors (1243648316).

1421312344 is a wasteful number, since it uses less digits than its factorization.

1421312344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177664049 (or 177664045 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1421312344 is about 37700.2963383579. The cubic root of 1421312344 is about 1124.3370168419.

Adding to 1421312344 its reverse (4432131241), we get a palindrome (5853443585).

The spelling of 1421312344 in words is "one billion, four hundred twenty-one million, three hundred twelve thousand, three hundred forty-four".