1622442 has 8 divisors (see below), whose sum is σ = 3244896. Its totient is φ = 540812.

The previous prime is 1622437. The next prime is 1622449. The reversal of 1622442 is 2442261.

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

1622442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1622449) 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, 135198 + ... + 135209.

It is an arithmetic number, because the mean of its divisors is an integer number (405612).

2^1622442 is an apocalyptic number.

1622442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1622442 is a wasteful number, since it uses less digits than its factorization.

1622442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270412.

The product of its digits is 768, while the sum is 21.

The square root of 1622442 is about 1273.7511530907. The cubic root of 1622442 is about 117.5050126125.

The spelling of 1622442 in words is "one million, six hundred twenty-two thousand, four hundred forty-two".