22619142 has 64 divisors (see below), whose sum is σ = 61877760. Its totient is φ = 5964192.

The previous prime is 22619141. The next prime is 22619153. The reversal of 22619142 is 24191622.

22619142 is a `hidden beast` number, since 2 + 2 + 619 + 1 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22619141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2613 + ... + 7215.

It is an arithmetic number, because the mean of its divisors is an integer number (966840).

Almost surely, 2^22619142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22619142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30938880).

22619142 is an abundant number, since it is smaller than the sum of its proper divisors (39258618).

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

22619142 is a wasteful number, since it uses less digits than its factorization.

22619142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634 (or 4628 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 22619142 is about 4755.9585784571. The cubic root of 22619142 is about 282.8082291125.

The spelling of 22619142 in words is "twenty-two million, six hundred nineteen thousand, one hundred forty-two".