1509972 has 24 divisors (see below), whose sum is σ = 3645600. Its totient is φ = 485856.

The previous prime is 1509971. The next prime is 1509997. The reversal of 1509972 is 2799051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1509971) 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, 1822 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (151900).

2^1509972 is an apocalyptic number.

1509972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1509972 is an abundant number, since it is smaller than the sum of its proper divisors (2135628).

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

1509972 is a wasteful number, since it uses less digits than its factorization.

1509972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4373 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 1509972 is about 1228.8091796532. The cubic root of 1509972 is about 114.7245328687.

The spelling of 1509972 in words is "one million, five hundred nine thousand, nine hundred seventy-two".