383253845 has 24 divisors (see below), whose sum is σ = 522753336. Its totient is φ = 268106112.

The previous prime is 383253809. The next prime is 383253863. The reversal of 383253845 is 548352383.

It can be written as a sum of positive squares in 4 ways, for example, as 6195121 + 377058724 = 2489^2 + 19418^2 .

It is not a de Polignac number, because 383253845 - 2¹² = 383249749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15299 + ... + 31631.

It is an arithmetic number, because the mean of its divisors is an integer number (21781389).

Almost surely, 2^383253845 is an apocalyptic number.

It is an amenable number.

383253845 is a deficient number, since it is larger than the sum of its proper divisors (139499491).

383253845 is a wasteful number, since it uses less digits than its factorization.

383253845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16389 (or 16370 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 383253845 is about 19576.8701533212. The cubic root of 383253845 is about 726.3771493700.

The spelling of 383253845 in words is "three hundred eighty-three million, two hundred fifty-three thousand, eight hundred forty-five".