1142622 has 48 divisors (see below), whose sum is σ = 2817360. Its totient is φ = 331776.

The previous prime is 1142599. The next prime is 1142633. The reversal of 1142622 is 2262411.

1142622 is a `hidden beast` number, since 1 + 1 + 42 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1142595 and 1142604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4318 + ... + 4574.

It is an arithmetic number, because the mean of its divisors is an integer number (58695).

2^1142622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408680).

1142622 is an abundant number, since it is smaller than the sum of its proper divisors (1674738).

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

1142622 is a wasteful number, since it uses less digits than its factorization.

1142622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 294 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1142622 is about 1068.9349839911. The cubic root of 1142622 is about 104.5444207264.

It can be divided in two parts, 1142 and 622, that added together give a square (1764 = 42²).

The spelling of 1142622 in words is "one million, one hundred forty-two thousand, six hundred twenty-two".