142622788 has 48 divisors (see below), whose sum is σ = 317084544. Its totient is φ = 54512640.

The previous prime is 142622771. The next prime is 142622789. The reversal of 142622788 is 887226241.

142622788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142622788.

It is not an unprimeable number, because it can be changed into a prime (142622789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11956 + ... + 20692.

It is an arithmetic number, because the mean of its divisors is an integer number (6605928).

Almost surely, 2^142622788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142622788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158542272).

142622788 is an abundant number, since it is smaller than the sum of its proper divisors (174461756).

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

142622788 is a wasteful number, since it uses less digits than its factorization.

142622788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812 (or 8810 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 142622788 is about 11942.4783022621. The cubic root of 142622788 is about 522.4719434276.

The spelling of 142622788 in words is "one hundred forty-two million, six hundred twenty-two thousand, seven hundred eighty-eight".