4533138 has 32 divisors (see below), whose sum is σ = 10168320. Its totient is φ = 1496880.

The previous prime is 4533131. The next prime is 4533149. The reversal of 4533138 is 8313354.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4533131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6528 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (317760).

Almost surely, 2^4533138 is an apocalyptic number.

4533138 is an abundant number, since it is smaller than the sum of its proper divisors (5635182).

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

4533138 is a wasteful number, since it uses less digits than its factorization.

4533138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 793 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 4533138 is about 2129.1167182661. The cubic root of 4533138 is about 165.5006282625.

It can be divided in two parts, 45331 and 38, that added together give a square (45369 = 213²).

The spelling of 4533138 in words is "four million, five hundred thirty-three thousand, one hundred thirty-eight".