2194668 has 48 divisors (see below), whose sum is σ = 6504960. Its totient is φ = 626832.

The previous prime is 2194667. The next prime is 2194679. The reversal of 2194668 is 8664912.

2194668 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

2194668 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194663) 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, 696 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (135520).

2^2194668 is an apocalyptic number.

2194668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2194668 is an abundant number, since it is smaller than the sum of its proper divisors (4310292).

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

2194668 is a wasteful number, since it uses less digits than its factorization.

2194668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923 (or 2915 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2194668 is about 1481.4411901928. The cubic root of 2194668 is about 129.9539876610.

The spelling of 2194668 in words is "two million, one hundred ninety-four thousand, six hundred sixty-eight".