283920356 has 6 divisors (see below), whose sum is σ = 496860630. Its totient is φ = 141960176.

The previous prime is 283920283. The next prime is 283920359. The reversal of 283920356 is 653029382.

It can be written as a sum of positive squares in only one way, i.e., 176092900 + 107827456 = 13270^2 + 10384^2 .

It is a super-2 number, since 2×283920356² = 161221537102333472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (283920359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35490041 + ... + 35490048.

It is an arithmetic number, because the mean of its divisors is an integer number (82810105).

Almost surely, 2^283920356 is an apocalyptic number.

It is an amenable number.

283920356 is a deficient number, since it is larger than the sum of its proper divisors (212940274).

283920356 is a wasteful number, since it uses less digits than its factorization.

283920356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70980093 (or 70980091 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 283920356 is about 16849.9363797019. The cubic root of 283920356 is about 657.2523944419.

The spelling of 283920356 in words is "two hundred eighty-three million, nine hundred twenty thousand, three hundred fifty-six".