1301572040 has 16 divisors (see below), whose sum is σ = 2928537180. Its totient is φ = 520628800.

The previous prime is 1301572021. The next prime is 1301572057. The reversal of 1301572040 is 402751031.

It can be written as a sum of positive squares in 2 ways, for example, as 1212571684 + 89000356 = 34822^2 + 9434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1301571997 and 1301572015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16269611 + ... + 16269690.

Almost surely, 2^1301572040 is an apocalyptic number.

1301572040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301572040 is an abundant number, since it is smaller than the sum of its proper divisors (1626965140).

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

1301572040 is a wasteful number, since it uses less digits than its factorization.

1301572040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32539312 (or 32539308 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1301572040 is about 36077.3064404758. The cubic root of 1301572040 is about 1091.8326323304.

The spelling of 1301572040 in words is "one billion, three hundred one million, five hundred seventy-two thousand, forty".