142426830 has 192 divisors, whose sum is σ = 444709440. Its totient is φ = 28901376.

The previous prime is 142426829. The next prime is 142426849. The reversal of 142426830 is 38624241.

142426830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 554062 + ... + 554318.

It is an arithmetic number, because the mean of its divisors is an integer number (2316195).

Almost surely, 2^142426830 is an apocalyptic number.

142426830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142426830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222354720).

142426830 is an abundant number, since it is smaller than the sum of its proper divisors (302282610).

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

142426830 is a wasteful number, since it uses less digits than its factorization.

142426830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 142426830 is about 11934.2712387477. The cubic root of 142426830 is about 522.2325485777.

The spelling of 142426830 in words is "one hundred forty-two million, four hundred twenty-six thousand, eight hundred thirty".