142450220 has 96 divisors (see below), whose sum is σ = 350542080. Its totient is φ = 48072960.

The previous prime is 142450213. The next prime is 142450303. The reversal of 142450220 is 22054241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 142450192 and 142450201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221219 + ... + 221861.

It is an arithmetic number, because the mean of its divisors is an integer number (3651480).

Almost surely, 2^142450220 is an apocalyptic number.

142450220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142450220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175271040).

142450220 is an abundant number, since it is smaller than the sum of its proper divisors (208091860).

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

142450220 is a wasteful number, since it uses less digits than its factorization.

142450220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 142450220 is about 11935.2511494313. The cubic root of 142450220 is about 522.2611348366.

The spelling of 142450220 in words is "one hundred forty-two million, four hundred fifty thousand, two hundred twenty".