142442064 has 100 divisors (see below), whose sum is σ = 415910880. Its totient is φ = 47062080.

The previous prime is 142442029. The next prime is 142442071. The reversal of 142442064 is 460244241.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 169357 + ... + 170195.

Almost surely, 2^142442064 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 142442064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207955440).

142442064 is an abundant number, since it is smaller than the sum of its proper divisors (273468816).

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

142442064 is a wasteful number, since it uses less digits than its factorization.

142442064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 142442064 is about 11934.9094676080. The cubic root of 142442064 is about 522.2511672772.

The spelling of 142442064 in words is "one hundred forty-two million, four hundred forty-two thousand, sixty-four".