142226928 has 120 divisors (see below), whose sum is σ = 417192048. Its totient is φ = 46904832.

The previous prime is 142226921. The next prime is 142226957. The reversal of 142226928 is 829622241.

142226928 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 (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 142226892 and 142226901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142226921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610300 + ... + 610532.

Almost surely, 2^142226928 is an apocalyptic number.

142226928 is a gapful number since it is divisible by the number (18) 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 142226928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208596024).

142226928 is an abundant number, since it is smaller than the sum of its proper divisors (274965120).

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

142226928 is a wasteful number, since it uses less digits than its factorization.

142226928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 395 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 142226928 is about 11925.8931740981. The cubic root of 142226928 is about 521.9881091227.

The spelling of 142226928 in words is "one hundred forty-two million, two hundred twenty-six thousand, nine hundred twenty-eight".