1421252344 has 32 divisors (see below), whose sum is σ = 2706264000. Its totient is φ = 699633792.

The previous prime is 1421252341. The next prime is 1421252351. The reversal of 1421252344 is 4432521241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421252341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232722 + ... + 238750.

It is an arithmetic number, because the mean of its divisors is an integer number (84570750).

Almost surely, 2^1421252344 is an apocalyptic number.

It is an amenable number.

1421252344 is a deficient number, since it is larger than the sum of its proper divisors (1285011656).

1421252344 is a wasteful number, since it uses less digits than its factorization.

1421252344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6487 (or 6483 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 1421252344 is about 37699.5005802464. The cubic root of 1421252344 is about 1124.3211955082.

Adding to 1421252344 its reverse (4432521241), we get a palindrome (5853773585).

The spelling of 1421252344 in words is "one billion, four hundred twenty-one million, two hundred fifty-two thousand, three hundred forty-four".