142404944 has 40 divisors (see below), whose sum is σ = 303209760. Its totient is φ = 64252800.

The previous prime is 142404923. The next prime is 142404947. The reversal of 142404944 is 449404241.

142404944 is digitally balanced in base 2, 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 142404944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142404947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21554 + ... + 27374.

It is an arithmetic number, because the mean of its divisors is an integer number (7580244).

Almost surely, 2^142404944 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 142404944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151604880).

142404944 is an abundant number, since it is smaller than the sum of its proper divisors (160804816).

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

142404944 is a wasteful number, since it uses less digits than its factorization.

142404944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979 (or 5973 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 142404944 is about 11933.3542644137. The cubic root of 142404944 is about 522.2057976089.

The spelling of 142404944 in words is "one hundred forty-two million, four hundred four thousand, nine hundred forty-four".