1449248618 has 4 divisors (see below), whose sum is σ = 2173872930. Its totient is φ = 724624308.

The previous prime is 1449248573. The next prime is 1449248621. The reversal of 1449248618 is 8168429441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1430125489 + 19123129 = 37817^2 + 4373^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362312153 + ... + 362312156.

Almost surely, 2^1449248618 is an apocalyptic number.

1449248618 is a deficient number, since it is larger than the sum of its proper divisors (724624312).

1449248618 is an equidigital number, since it uses as much as digits as its factorization.

1449248618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724624311.

The product of its digits is 442368, while the sum is 47.

The square root of 1449248618 is about 38068.9981218314. The cubic root of 1449248618 is about 1131.6556558348.

The spelling of 1449248618 in words is "one billion, four hundred forty-nine million, two hundred forty-eight thousand, six hundred eighteen".