20230308 has 36 divisors (see below), whose sum is σ = 58443840. Its totient is φ = 5780016.

The previous prime is 20230303. The next prime is 20230361. The reversal of 20230308 is 80303202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39888 + ... + 40391.

It is an arithmetic number, because the mean of its divisors is an integer number (1623440).

Almost surely, 2^20230308 is an apocalyptic number.

20230308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20230308 is an abundant number, since it is smaller than the sum of its proper divisors (38213532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20230308 is a wasteful number, since it uses less digits than its factorization.

20230308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80296 (or 80291 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20230308 is about 4497.8114678141. The cubic root of 20230308 is about 272.4797078288.

It can be divided in two parts, 202 and 30308, that multiplied together give a palindrome (6122216).

The spelling of 20230308 in words is "twenty million, two hundred thirty thousand, three hundred eight".