11056890 has 32 divisors (see below), whose sum is σ = 28578816. Its totient is φ = 2721600.

The previous prime is 11056889. The next prime is 11056897. The reversal of 11056890 is 9865011.

It is a happy number.

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 (11056897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13786 + ... + 14565.

It is an arithmetic number, because the mean of its divisors is an integer number (893088).

Almost surely, 2^11056890 is an apocalyptic number.

11056890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11056890 is an abundant number, since it is smaller than the sum of its proper divisors (17521926).

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

11056890 is a wasteful number, since it uses less digits than its factorization.

11056890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28374.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 11056890 is about 3325.1902201228. The cubic root of 11056890 is about 222.7807506789.

The spelling of 11056890 in words is "eleven million, fifty-six thousand, eight hundred ninety".