1822542 has 16 divisors (see below), whose sum is σ = 3687120. Its totient is φ = 600512.

The previous prime is 1822529. The next prime is 1822547. The reversal of 1822542 is 2452281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822547) 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, 1173 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (230445).

2^1822542 is an apocalyptic number.

1822542 is an abundant number, since it is smaller than the sum of its proper divisors (1864578).

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

1822542 is a wasteful number, since it uses less digits than its factorization.

1822542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507.

The product of its digits is 1280, while the sum is 24.

The square root of 1822542 is about 1350.0155554659. The cubic root of 1822542 is about 122.1497310568.

The spelling of 1822542 in words is "one million, eight hundred twenty-two thousand, five hundred forty-two".