1449275618 has 16 divisors (see below), whose sum is σ = 2501150400. Its totient is φ = 616948656.

The previous prime is 1449275617. The next prime is 1449275621. The reversal of 1449275618 is 8165729441.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1449275617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345296 + ... + 349467.

It is an arithmetic number, because the mean of its divisors is an integer number (156321900).

Almost surely, 2^1449275618 is an apocalyptic number.

1449275618 is a deficient number, since it is larger than the sum of its proper divisors (1051874782).

1449275618 is a wasteful number, since it uses less digits than its factorization.

1449275618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694921.

The product of its digits is 483840, while the sum is 47.

The square root of 1449275618 is about 38069.3527394412. The cubic root of 1449275618 is about 1131.6626835024.

The spelling of 1449275618 in words is "one billion, four hundred forty-nine million, two hundred seventy-five thousand, six hundred eighteen".