1209572 has 24 divisors (see below), whose sum is σ = 2606016. Its totient is φ = 478368.

The previous prime is 1209563. The next prime is 1209577. The reversal of 1209572 is 2759021.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1209577) 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, 1298 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (108584).

2^1209572 is an apocalyptic number.

It is an amenable number.

1209572 is an abundant number, since it is smaller than the sum of its proper divisors (1396444).

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

1209572 is a wasteful number, since it uses less digits than its factorization.

1209572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347 (or 3345 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1209572 is about 1099.8054373388. The cubic root of 1209572 is about 106.5476580694.

It can be divided in two parts, 12095 and 72, that added together give a cube (12167 = 23³).

The spelling of 1209572 in words is "one million, two hundred nine thousand, five hundred seventy-two".