1479915144 has 128 divisors (see below), whose sum is σ = 4424716800. Its totient is φ = 456606720.

The previous prime is 1479915139. The next prime is 1479915163. The reversal of 1479915144 is 4415199741.

1479915144 is a `hidden beast` number, since 1 + 47 + 9 + 91 + 514 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1479915144.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220689 + ... + 227295.

It is an arithmetic number, because the mean of its divisors is an integer number (34568100).

Almost surely, 2^1479915144 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 1479915144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2212358400).

1479915144 is an abundant number, since it is smaller than the sum of its proper divisors (2944801656).

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

1479915144 is a wasteful number, since it uses less digits than its factorization.

1479915144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700 (or 6690 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 1479915144 is about 38469.6652441895. The cubic root of 1479915144 is about 1139.5820628646.

The spelling of 1479915144 in words is "one billion, four hundred seventy-nine million, nine hundred fifteen thousand, one hundred forty-four".