283820481 has 24 divisors (see below), whose sum is σ = 469482624. Its totient is φ = 161853120.

The previous prime is 283820479. The next prime is 283820497. The reversal of 283820481 is 184028382.

It is a happy number.

It is not a de Polignac number, because 283820481 - 2¹ = 283820479 is a prime.

It is a super-2 number, since 2×283820481² = 161108130870142722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (283820281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28500 + ... + 37146.

It is an arithmetic number, because the mean of its divisors is an integer number (19561776).

Almost surely, 2^283820481 is an apocalyptic number.

283820481 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

283820481 is a deficient number, since it is larger than the sum of its proper divisors (185662143).

283820481 is a wasteful number, since it uses less digits than its factorization.

283820481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181 (or 9178 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 283820481 is about 16846.9724579819. The cubic root of 283820481 is about 657.1753179190.

The spelling of 283820481 in words is "two hundred eighty-three million, eight hundred twenty thousand, four hundred eighty-one".