1344815538 has 24 divisors (see below), whose sum is σ = 2956372944. Its totient is φ = 407519640.

The previous prime is 1344815453. The next prime is 1344815561. The reversal of 1344815538 is 8355184431.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344815538.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 925456 + ... + 926907.

It is an arithmetic number, because the mean of its divisors is an integer number (123182206).

Almost surely, 2^1344815538 is an apocalyptic number.

1344815538 is an abundant number, since it is smaller than the sum of its proper divisors (1611557406).

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

1344815538 is a wasteful number, since it uses less digits than its factorization.

1344815538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852390 (or 1852379 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 1344815538 is about 36671.7266841909. The cubic root of 1344815538 is about 1103.7928404490.

Adding to 1344815538 its reverse (8355184431), we get a palindrome (9699999969).

The spelling of 1344815538 in words is "one billion, three hundred forty-four million, eight hundred fifteen thousand, five hundred thirty-eight".