1344335421 has 32 divisors (see below), whose sum is σ = 2110727808. Its totient is φ = 750320640.

The previous prime is 1344335417. The next prime is 1344335423. The reversal of 1344335421 is 1245334431.

It is not a de Polignac number, because 1344335421 - 2² = 1344335417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344335423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192625 + ... + 199481.

It is an arithmetic number, because the mean of its divisors is an integer number (65960244).

Almost surely, 2^1344335421 is an apocalyptic number.

1344335421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1344335421 is a deficient number, since it is larger than the sum of its proper divisors (766392387).

1344335421 is a wasteful number, since it uses less digits than its factorization.

1344335421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7341.

The product of its digits is 17280, while the sum is 30.

The square root of 1344335421 is about 36665.1799531926. The cubic root of 1344335421 is about 1103.6614685815.

Adding to 1344335421 its reverse (1245334431), we get a palindrome (2589669852).

The spelling of 1344335421 in words is "one billion, three hundred forty-four million, three hundred thirty-five thousand, four hundred twenty-one".