142445996 has 48 divisors (see below), whose sum is σ = 313716480. Its totient is φ = 54976320.

The previous prime is 142445993. The next prime is 142446019. The reversal of 142445996 is 699544241.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (142445993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31451 + ... + 35693.

It is an arithmetic number, because the mean of its divisors is an integer number (6535760).

Almost surely, 2^142445996 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 142445996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156858240).

142445996 is an abundant number, since it is smaller than the sum of its proper divisors (171270484).

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

142445996 is a wasteful number, since it uses less digits than its factorization.

142445996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374 (or 4372 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 142445996 is about 11935.0741933178. The cubic root of 142445996 is about 522.2559726758.

The spelling of 142445996 in words is "one hundred forty-two million, four hundred forty-five thousand, nine hundred ninety-six".