2194290 has 112 divisors (see below), whose sum is σ = 6925248. Its totient is φ = 489888.

The previous prime is 2194267. The next prime is 2194301. The reversal of 2194290 is 924912.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 51009 + ... + 51051.

2^2194290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2194290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3462624).

2194290 is an abundant number, since it is smaller than the sum of its proper divisors (4730958).

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

2194290 is an equidigital number, since it uses as much as digits as its factorization.

2194290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2194290 is about 1481.3136062293. The cubic root of 2194290 is about 129.9465263308.

The spelling of 2194290 in words is "two million, one hundred ninety-four thousand, two hundred ninety".