2193442 has 8 divisors (see below), whose sum is σ = 3483756. Its totient is φ = 1032192.

The previous prime is 2193439. The next prime is 2193449. The reversal of 2193442 is 2443912.

It can be written as a sum of positive squares in 2 ways, for example, as 2193361 + 81 = 1481^2 + 9^2 .

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

It is a super-2 number, since 2×2193442² = 9622375614728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2193449) 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, 32223 + ... + 32290.

2^2193442 is an apocalyptic number.

2193442 is a deficient number, since it is larger than the sum of its proper divisors (1290314).

2193442 is a wasteful number, since it uses less digits than its factorization.

2193442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64532.

The product of its digits is 1728, while the sum is 25.

The square root of 2193442 is about 1481.0273461351. The cubic root of 2193442 is about 129.9297845674.

It can be divided in two parts, 2 and 193442, that multiplied together give a square (386884 = 622²).

The spelling of 2193442 in words is "two million, one hundred ninety-three thousand, four hundred forty-two".