142214428 has 12 divisors (see below), whose sum is σ = 259696080. Its totient is φ = 68015552.

The previous prime is 142214419. The next prime is 142214467. The reversal of 142214428 is 824412241.

It is a junction number, because it is equal to n+sod(n) for n = 142214396 and 142214405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772813 + ... + 772996.

It is an arithmetic number, because the mean of its divisors is an integer number (21641340).

Almost surely, 2^142214428 is an apocalyptic number.

It is an amenable number.

142214428 is a deficient number, since it is larger than the sum of its proper divisors (117481652).

142214428 is a wasteful number, since it uses less digits than its factorization.

142214428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545836 (or 1545834 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 142214428 is about 11925.3690928206. The cubic root of 142214428 is about 521.9728165603.

Adding to 142214428 its reverse (824412241), we get a palindrome (966626669).

The spelling of 142214428 in words is "one hundred forty-two million, two hundred fourteen thousand, four hundred twenty-eight".