283921242 has 16 divisors (see below), whose sum is σ = 619464672. Its totient is φ = 86036720.

The previous prime is 283921189. The next prime is 283921243. The reversal of 283921242 is 242129382.

It is a super-2 number, since 2×283921242² = 161222543317645128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (283921243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150853 + ... + 2150984.

It is an arithmetic number, because the mean of its divisors is an integer number (38716542).

Almost surely, 2^283921242 is an apocalyptic number.

283921242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

283921242 is an abundant number, since it is smaller than the sum of its proper divisors (335543430).

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

283921242 is a wasteful number, since it uses less digits than its factorization.

283921242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301853.

The product of its digits is 13824, while the sum is 33.

The square root of 283921242 is about 16849.9626705818. The cubic root of 283921242 is about 657.2530781137.

The spelling of 283921242 in words is "two hundred eighty-three million, nine hundred twenty-one thousand, two hundred forty-two".