2263890 has 64 divisors (see below), whose sum is σ = 6034176. Its totient is φ = 540672.

The previous prime is 2263879. The next prime is 2263901. The reversal of 2263890 is 983622.

It is an interprime number because it is at equal distance from previous prime (2263879) and next prime (2263901).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11634 + ... + 11826.

It is an arithmetic number, because the mean of its divisors is an integer number (94284).

2^2263890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2263890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3017088).

2263890 is an abundant number, since it is smaller than the sum of its proper divisors (3770286).

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

2263890 is a wasteful number, since it uses less digits than its factorization.

2263890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2263890 is about 1504.6228763381. The cubic root of 2263890 is about 131.3061619059.

The spelling of 2263890 in words is "two million, two hundred sixty-three thousand, eight hundred ninety".