1518234449 has 8 divisors (see below), whose sum is σ = 1561343040. Its totient is φ = 1475661616.

The previous prime is 1518234413. The next prime is 1518234479. The reversal of 1518234449 is 9444328151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1518234449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1518234479) 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, 128189 + ... + 139530.

It is an arithmetic number, because the mean of its divisors is an integer number (195167880).

Almost surely, 2^1518234449 is an apocalyptic number.

It is an amenable number.

1518234449 is a deficient number, since it is larger than the sum of its proper divisors (43108591).

1518234449 is a wasteful number, since it uses less digits than its factorization.

1518234449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267879.

The product of its digits is 138240, while the sum is 41.

The square root of 1518234449 is about 38964.5280864532. The cubic root of 1518234449 is about 1149.3340691480.

The spelling of 1518234449 in words is "one billion, five hundred eighteen million, two hundred thirty-four thousand, four hundred forty-nine".