2197842 has 8 divisors (see below), whose sum is σ = 4395696. Its totient is φ = 732612.

The previous prime is 2197799. The next prime is 2197847. The reversal of 2197842 is 2487912.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2197842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2197847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183148 + ... + 183159.

It is an arithmetic number, because the mean of its divisors is an integer number (549462).

2^2197842 is an apocalyptic number.

2197842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2197842 is a wasteful number, since it uses less digits than its factorization.

2197842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366312.

The product of its digits is 8064, while the sum is 33.

The square root of 2197842 is about 1482.5120572866. The cubic root of 2197842 is about 130.0166053739.

The spelling of 2197842 in words is "two million, one hundred ninety-seven thousand, eight hundred forty-two".