2572720326 has 64 divisors (see below), whose sum is σ = 6452006400. Its totient is φ = 752724000.

The previous prime is 2572720321. The next prime is 2572720331. The reversal of 2572720326 is 6230272752.

It is an interprime number because it is at equal distance from previous prime (2572720321) and next prime (2572720331).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572720321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57450 + ... + 91901.

It is an arithmetic number, because the mean of its divisors is an integer number (100812600).

Almost surely, 2^2572720326 is an apocalyptic number.

2572720326 is an abundant number, since it is smaller than the sum of its proper divisors (3879286074).

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

2572720326 is a wasteful number, since it uses less digits than its factorization.

2572720326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149402 (or 149396 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 2572720326 is about 50721.9905563652. The cubic root of 2572720326 is about 1370.2427910760.

It can be divided in two parts, 2572720 and 326, that added together give a triangular number (2573046 = T₂₂₆₈).

The spelling of 2572720326 in words is "two billion, five hundred seventy-two million, seven hundred twenty thousand, three hundred twenty-six".