283245389 has 4 divisors (see below), whose sum is σ = 323709024. Its totient is φ = 242781756.

The previous prime is 283245377. The next prime is 283245439. The reversal of 283245389 is 983542382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 283245389 - 2⁴ = 283245373 is a prime.

It is a super-2 number, since 2×283245389² = 160455900779522642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283245089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20231807 + ... + 20231820.

It is an arithmetic number, because the mean of its divisors is an integer number (80927256).

Almost surely, 2^283245389 is an apocalyptic number.

It is an amenable number.

283245389 is a deficient number, since it is larger than the sum of its proper divisors (40463635).

283245389 is an equidigital number, since it uses as much as digits as its factorization.

283245389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40463634.

The product of its digits is 414720, while the sum is 44.

The square root of 283245389 is about 16829.8956918930. The cubic root of 283245389 is about 656.7311500432.

The spelling of 283245389 in words is "two hundred eighty-three million, two hundred forty-five thousand, three hundred eighty-nine".