2725890 has 16 divisors (see below), whose sum is σ = 6542208. Its totient is φ = 726896.

The previous prime is 2725871. The next prime is 2725897. The reversal of 2725890 is 985272.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2725897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45402 + ... + 45461.

It is an arithmetic number, because the mean of its divisors is an integer number (408888).

2^2725890 is an apocalyptic number.

2725890 is an abundant number, since it is smaller than the sum of its proper divisors (3816318).

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

2725890 is a wasteful number, since it uses less digits than its factorization.

2725890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90873.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2725890 is about 1651.0269531416. The cubic root of 2725890 is about 139.6913267373.

The spelling of 2725890 in words is "two million, seven hundred twenty-five thousand, eight hundred ninety".