1009572 has 12 divisors (see below), whose sum is σ = 2355696. Its totient is φ = 336520.

The previous prime is 1009559. The next prime is 1009573. The reversal of 1009572 is 2759001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1009573) 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, 42054 + ... + 42077.

It is an arithmetic number, because the mean of its divisors is an integer number (196308).

2^1009572 is an apocalyptic number.

1009572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1009572 is an abundant number, since it is smaller than the sum of its proper divisors (1346124).

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

1009572 is a wasteful number, since it uses less digits than its factorization.

1009572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84138 (or 84136 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 1009572 is about 1004.7746015898. The cubic root of 1009572 is about 100.3180540107.

The spelling of 1009572 in words is "one million, nine thousand, five hundred seventy-two".