33240530 has 8 divisors (see below), whose sum is σ = 59832972. Its totient is φ = 13296208.

The previous prime is 33240503. The next prime is 33240533. The reversal of 33240530 is 3504233.

It can be written as a sum of positive squares in 2 ways, for example, as 33028009 + 212521 = 5747^2 + 461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33240530² = 2209865669361800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33240533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662017 + ... + 1662036.

Almost surely, 2^33240530 is an apocalyptic number.

33240530 is a deficient number, since it is larger than the sum of its proper divisors (26592442).

33240530 is a wasteful number, since it uses less digits than its factorization.

33240530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324060.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 33240530 is about 5765.4600857174. The cubic root of 33240530 is about 321.5308484872.

Adding to 33240530 its reverse (3504233), we get a palindrome (36744763).

The spelling of 33240530 in words is "thirty-three million, two hundred forty thousand, five hundred thirty".