2572736 has 28 divisors (see below), whose sum is σ = 5196840. Its totient is φ = 1263360.

The previous prime is 2572699. The next prime is 2572741. The reversal of 2572736 is 6372752.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 2⁵ + 5⁵ + 7⁶ + 2¹⁵ + 7⁷ + 3¹³ + 6⁴ .

It is a congruent number.

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, 3575 + ... + 4233.

2^2572736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2572736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2598420).

2572736 is an abundant number, since it is smaller than the sum of its proper divisors (2624104).

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

2572736 is an equidigital number, since it uses as much as digits as its factorization.

2572736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 722 counting only the distinct ones).

The product of its digits is 17640, while the sum is 32.

The square root of 2572736 is about 1603.9750621503. The cubic root of 2572736 is about 137.0245573752.

The spelling of 2572736 in words is "two million, five hundred seventy-two thousand, seven hundred thirty-six".