1421012344 has 8 divisors (see below), whose sum is σ = 2664398160. Its totient is φ = 710506168.

The previous prime is 1421012339. The next prime is 1421012347. The reversal of 1421012344 is 4432101241.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421012347) 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 as a sum of consecutive naturals, namely, 88813264 + ... + 88813279.

It is an arithmetic number, because the mean of its divisors is an integer number (333049770).

Almost surely, 2^1421012344 is an apocalyptic number.

It is an amenable number.

1421012344 is a deficient number, since it is larger than the sum of its proper divisors (1243385816).

1421012344 is a wasteful number, since it uses less digits than its factorization.

1421012344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177626549 (or 177626545 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1421012344 is about 37696.3173798184. The cubic root of 1421012344 is about 1124.2579057206.

Adding to 1421012344 its reverse (4432101241), we get a palindrome (5853113585).

The spelling of 1421012344 in words is "one billion, four hundred twenty-one million, twelve thousand, three hundred forty-four".