2254640 has 20 divisors (see below), whose sum is σ = 5242224. Its totient is φ = 901824.

The previous prime is 2254627. The next prime is 2254643. The reversal of 2254640 is 464522.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-4 number, since 4×2254640⁴ (a number of 27 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2254643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14012 + ... + 14171.

2^2254640 is an apocalyptic number.

2254640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2254640 is an abundant number, since it is smaller than the sum of its proper divisors (2987584).

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

2254640 is a wasteful number, since it uses less digits than its factorization.

2254640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28196 (or 28190 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2254640 is about 1501.5458700952. The cubic root of 2254640 is about 131.1270837148.

The spelling of 2254640 in words is "two million, two hundred fifty-four thousand, six hundred forty".