1942221 has 8 divisors (see below), whose sum is σ = 2633760. Its totient is φ = 1272752.

The previous prime is 1942207. The next prime is 1942273. The reversal of 1942221 is 1222491.

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

It is a cyclic number.

It is not a de Polignac number, because 1942221 - 2¹¹ = 1940173 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5310 + ... + 5663.

It is an arithmetic number, because the mean of its divisors is an integer number (329220).

2^1942221 is an apocalyptic number.

It is an amenable number.

1942221 is a deficient number, since it is larger than the sum of its proper divisors (691539).

1942221 is a wasteful number, since it uses less digits than its factorization.

1942221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11035.

The product of its digits is 288, while the sum is 21.

The square root of 1942221 is about 1393.6358921899. The cubic root of 1942221 is about 124.7669470941.

It can be divided in two parts, 194 and 2221, that added together give a triangular number (2415 = T₆₉).

The spelling of 1942221 in words is "one million, nine hundred forty-two thousand, two hundred twenty-one".