142212028 has 48 divisors (see below), whose sum is σ = 289707264. Its totient is φ = 59829120.

The previous prime is 142212019. The next prime is 142212029. The reversal of 142212028 is 820212241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142212029) 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, 502375 + ... + 502657.

It is an arithmetic number, because the mean of its divisors is an integer number (6035568).

Almost surely, 2^142212028 is an apocalyptic number.

It is an amenable number.

142212028 is an abundant number, since it is smaller than the sum of its proper divisors (147495236).

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

142212028 is a wasteful number, since it uses less digits than its factorization.

142212028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 142212028 is about 11925.2684665797. The cubic root of 142212028 is about 521.9698802858.

Adding to 142212028 its reverse (820212241), we get a palindrome (962424269).

The spelling of 142212028 in words is "one hundred forty-two million, two hundred twelve thousand, twenty-eight".