1259821472 has 48 divisors (see below), whose sum is σ = 3052651392. Its totient is φ = 498389760.

The previous prime is 1259821469. The next prime is 1259821477. The reversal of 1259821472 is 2741289521.

It is not an unprimeable number, because it can be changed into a prime (1259821477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213404 + ... + 219227.

It is an arithmetic number, because the mean of its divisors is an integer number (63596904).

Almost surely, 2^1259821472 is an apocalyptic number.

It is an amenable number.

1259821472 is an abundant number, since it is smaller than the sum of its proper divisors (1792829920).

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

1259821472 is a wasteful number, since it uses less digits than its factorization.

1259821472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432661 (or 432653 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 1259821472 is about 35493.9638812010. The cubic root of 1259821472 is about 1080.0312839589.

The spelling of 1259821472 in words is "one billion, two hundred fifty-nine million, eight hundred twenty-one thousand, four hundred seventy-two".