2253890 has 16 divisors (see below), whose sum is σ = 4077432. Its totient is φ = 897024.

The previous prime is 2253887. The next prime is 2253899. The reversal of 2253890 is 983522.

It can be written as a sum of positive squares in 4 ways, for example, as 2247001 + 6889 = 1499^2 + 83^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2253899) 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, 2132 + ... + 3008.

2^2253890 is an apocalyptic number.

2253890 is a deficient number, since it is larger than the sum of its proper divisors (1823542).

2253890 is a wasteful number, since it uses less digits than its factorization.

2253890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2253890 is about 1501.2961067025. The cubic root of 2253890 is about 131.1125424105.

The spelling of 2253890 in words is "two million, two hundred fifty-three thousand, eight hundred ninety".