142322004 has 72 divisors (see below), whose sum is σ = 394168320. Its totient is φ = 42940800.

The previous prime is 142321987. The next prime is 142322021. The reversal of 142322004 is 400223241.

142322004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142321987) and next prime (142322021).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110637 + ... + 111915.

It is an arithmetic number, because the mean of its divisors is an integer number (5474560).

Almost surely, 2^142322004 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 142322004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197084160).

142322004 is an abundant number, since it is smaller than the sum of its proper divisors (251846316).

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

142322004 is a wasteful number, since it uses less digits than its factorization.

142322004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 142322004 is about 11929.8786246969. The cubic root of 142322004 is about 522.1043962602.

Adding to 142322004 its reverse (400223241), we get a palindrome (542545245).

The spelling of 142322004 in words is "one hundred forty-two million, three hundred twenty-two thousand, four".