2725380 has 144 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 616896.

The previous prime is 2725369. The next prime is 2725433. The reversal of 2725380 is 835272.

It is a super-2 number, since 2×2725380² = 14855392288800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26409 + ... + 26511.

It is an arithmetic number, because the mean of its divisors is an integer number (69160).

2^2725380 is an apocalyptic number.

2725380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2725380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4979520).

2725380 is an abundant number, since it is smaller than the sum of its proper divisors (7233660).

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

2725380 is a wasteful number, since it uses less digits than its factorization.

2725380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2725380 is about 1650.8724965908. The cubic root of 2725380 is about 139.6826143510.

The spelling of 2725380 in words is "two million, seven hundred twenty-five thousand, three hundred eighty".