20383265 has 24 divisors (see below), whose sum is σ = 28651392. Its totient is φ = 13880160.

The previous prime is 20383249. The next prime is 20383277. The reversal of 20383265 is 56238302.

It is not a de Polignac number, because 20383265 - 2⁴ = 20383249 is a prime.

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, 66242 + ... + 66548.

It is an arithmetic number, because the mean of its divisors is an integer number (1193808).

Almost surely, 2^20383265 is an apocalyptic number.

It is an amenable number.

20383265 is a deficient number, since it is larger than the sum of its proper divisors (8268127).

20383265 is a wasteful number, since it uses less digits than its factorization.

20383265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20383265 is about 4514.7829405188. The cubic root of 20383265 is about 273.1647044688.

The spelling of 20383265 in words is "twenty million, three hundred eighty-three thousand, two hundred sixty-five".