2194590 has 32 divisors (see below), whose sum is σ = 5308416. Its totient is φ = 580640.

The previous prime is 2194579. The next prime is 2194613. The reversal of 2194590 is 954912.

It is a happy number.

It is a super-3 number, since 3×2194590³ = 31708919433358737000, which contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5539 + ... + 5921.

It is an arithmetic number, because the mean of its divisors is an integer number (165888).

2^2194590 is an apocalyptic number.

2194590 is an abundant number, since it is smaller than the sum of its proper divisors (3113826).

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

2194590 is a wasteful number, since it uses less digits than its factorization.

2194590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2194590 is about 1481.4148642430. The cubic root of 2194590 is about 129.9524480916.

2194590 divided by its sum of digits (30) gives a triangular number (73153 = T₃₈₂).

The spelling of 2194590 in words is "two million, one hundred ninety-four thousand, five hundred ninety".