2189190 has 16 divisors (see below), whose sum is σ = 5254128. Its totient is φ = 583776.

The previous prime is 2189183. The next prime is 2189207. The reversal of 2189190 is 919812.

It is a super-2 number, since 2×2189190² = 9585105712200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 72973 = 2189190 / (2 + 1 + 8 + 9 + 1 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36457 + ... + 36516.

It is an arithmetic number, because the mean of its divisors is an integer number (328383).

2^2189190 is an apocalyptic number.

2189190 is an abundant number, since it is smaller than the sum of its proper divisors (3064938).

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

2189190 is a wasteful number, since it uses less digits than its factorization.

2189190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72983.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 2189190 is about 1479.5911597465. The cubic root of 2189190 is about 129.8457737126.

The spelling of 2189190 in words is "two million, one hundred eighty-nine thousand, one hundred ninety".