1344432520 has 32 divisors (see below), whose sum is σ = 3028956120. Its totient is φ = 537064960.

The previous prime is 1344432493. The next prime is 1344432527. The reversal of 1344432520 is 252344431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 886729284 + 457703236 = 29778^2 + 21394^2 .

It is not an unprimeable number, because it can be changed into a prime (1344432527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9180 + ... + 52660.

Almost surely, 2^1344432520 is an apocalyptic number.

1344432520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344432520 is an abundant number, since it is smaller than the sum of its proper divisors (1684523600).

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

1344432520 is a wasteful number, since it uses less digits than its factorization.

1344432520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44265 (or 44261 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1344432520 is about 36666.5040602455. The cubic root of 1344432520 is about 1103.6880397887.

Adding to 1344432520 its reverse (252344431), we get a palindrome (1596776951).

The spelling of 1344432520 in words is "one billion, three hundred forty-four million, four hundred thirty-two thousand, five hundred twenty".