1439049264 has 80 divisors (see below), whose sum is σ = 3853753344. Its totient is φ = 462240000.

The previous prime is 1439049253. The next prime is 1439049289. The reversal of 1439049264 is 4629409341.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 371562 + ... + 375414.

Almost surely, 2^1439049264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1439049264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926876672).

1439049264 is an abundant number, since it is smaller than the sum of its proper divisors (2414704080).

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

1439049264 is a wasteful number, since it uses less digits than its factorization.

1439049264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146 (or 4140 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 1439049264 is about 37934.8028069212. The cubic root of 1439049264 is about 1128.9946586015.

The spelling of 1439049264 in words is "one billion, four hundred thirty-nine million, forty-nine thousand, two hundred sixty-four".