1943442 has 24 divisors (see below), whose sum is σ = 4256460. Its totient is φ = 640800.

The previous prime is 1943437. The next prime is 1943443. The reversal of 1943442 is 2443491.

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 145161 = 1341^2 + 381^2 .

It is not an unprimeable number, because it can be changed into a prime (1943443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1284 + ... + 2352.

2^1943442 is an apocalyptic number.

1943442 is an abundant number, since it is smaller than the sum of its proper divisors (2313018).

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

1943442 is a wasteful number, since it uses less digits than its factorization.

1943442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1175 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1943442 is about 1394.0738861337. The cubic root of 1943442 is about 124.7930870185.

The spelling of 1943442 in words is "one million, nine hundred forty-three thousand, four hundred forty-two".