222042428 has 6 divisors (see below), whose sum is σ = 388574256. Its totient is φ = 111021212.

The previous prime is 222042427. The next prime is 222042433. The reversal of 222042428 is 824240222.

222042428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222042397 and 222042406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222042427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755300 + ... + 27755307.

It is an arithmetic number, because the mean of its divisors is an integer number (64762376).

Almost surely, 2^222042428 is an apocalyptic number.

It is an amenable number.

222042428 is a deficient number, since it is larger than the sum of its proper divisors (166531828).

222042428 is a wasteful number, since it uses less digits than its factorization.

222042428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55510611 (or 55510609 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 222042428 is about 14901.0881481857. The cubic root of 222042428 is about 605.5434663106.

The spelling of 222042428 in words is "two hundred twenty-two million, forty-two thousand, four hundred twenty-eight".