1479969520 has 20 divisors (see below), whose sum is σ = 3440929320. Its totient is φ = 591987776.

The previous prime is 1479969503. The next prime is 1479969529. The reversal of 1479969520 is 259699741.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1479969529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9249730 + ... + 9249889.

It is an arithmetic number, because the mean of its divisors is an integer number (172046466).

Almost surely, 2^1479969520 is an apocalyptic number.

1479969520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1479969520 is an abundant number, since it is smaller than the sum of its proper divisors (1960959800).

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

1479969520 is a wasteful number, since it uses less digits than its factorization.

1479969520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18499632 (or 18499626 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The square root of 1479969520 is about 38470.3719763664. The cubic root of 1479969520 is about 1139.5960197809.

The spelling of 1479969520 in words is "one billion, four hundred seventy-nine million, nine hundred sixty-nine thousand, five hundred twenty".