1300072 has 16 divisors (see below), whose sum is σ = 2463300. Its totient is φ = 643200.

The previous prime is 1300051. The next prime is 1300073. The reversal of 1300072 is 2700031.

It can be written as a sum of positive squares in 2 ways, for example, as 872356 + 427716 = 934^2 + 654^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1300073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4 + ... + 1612.

2^1300072 is an apocalyptic number.

It is an amenable number.

1300072 is a deficient number, since it is larger than the sum of its proper divisors (1163228).

1300072 is a wasteful number, since it uses less digits than its factorization.

1300072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 1300072 is about 1140.2069987507. The cubic root of 1300072 is about 109.1413031481.

The spelling of 1300072 in words is "one million, three hundred thousand, seventy-two".