11263890 has 96 divisors (see below), whose sum is σ = 31026240. Its totient is φ = 2611840.

The previous prime is 11263871. The next prime is 11263891. The reversal of 11263890 is 9836211.

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

It is not an unprimeable number, because it can be changed into a prime (11263891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105217 + ... + 105323.

It is an arithmetic number, because the mean of its divisors is an integer number (323190).

Almost surely, 2^11263890 is an apocalyptic number.

11263890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11263890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15513120).

11263890 is an abundant number, since it is smaller than the sum of its proper divisors (19762350).

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

11263890 is a wasteful number, since it uses less digits than its factorization.

11263890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 11263890 is about 3356.1719264662. The cubic root of 11263890 is about 224.1624167523.

It can be divided in two parts, 11 and 263890, that added together give a triangular number (263901 = T₇₂₆).

The spelling of 11263890 in words is "eleven million, two hundred sixty-three thousand, eight hundred ninety".