1622542 has 8 divisors (see below), whose sum is σ = 2479896. Its totient is φ = 795912.

The previous prime is 1622483. The next prime is 1622549. The reversal of 1622542 is 2452261.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622549) 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, 7548 + ... + 7759.

It is an arithmetic number, because the mean of its divisors is an integer number (309987).

2^1622542 is an apocalyptic number.

1622542 is a deficient number, since it is larger than the sum of its proper divisors (857354).

1622542 is a wasteful number, since it uses less digits than its factorization.

1622542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15362.

The product of its digits is 960, while the sum is 22.

The square root of 1622542 is about 1273.7904066211. The cubic root of 1622542 is about 117.5074267224.

It can be divided in two parts, 162 and 2542, that added together give a square (2704 = 52²).

The spelling of 1622542 in words is "one million, six hundred twenty-two thousand, five hundred forty-two".