2042156228 has 12 divisors (see below), whose sum is σ = 4084312512. Its totient is φ = 875209800.

The previous prime is 2042156219. The next prime is 2042156257. The reversal of 2042156228 is 8226512402.

2042156228 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2042156194 and 2042156203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36467048 + ... + 36467103.

It is an arithmetic number, because the mean of its divisors is an integer number (340359376).

Almost surely, 2^2042156228 is an apocalyptic number.

2042156228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2042156228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2042156228 is a wasteful number, since it uses less digits than its factorization.

2042156228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72934162 (or 72934160 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2042156228 is about 45190.2227035893. Note that the first 3 decimals coincide. The cubic root of 2042156228 is about 1268.7118250447.

The spelling of 2042156228 in words is "two billion, forty-two million, one hundred fifty-six thousand, two hundred twenty-eight".