33230420 has 18 divisors (see below), whose sum is σ = 69838062. Its totient is φ = 13281856.

The previous prime is 33230401. The next prime is 33230429. The reversal of 33230420 is 2403233.

It can be written as a sum of positive squares in 3 ways, for example, as 12418576 + 20811844 = 3524^2 + 4562^2 .

It is a super-2 number, since 2×33230420² = 2208521626752800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33230429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25136 + ... + 26424.

Almost surely, 2^33230420 is an apocalyptic number.

It is an amenable number.

33230420 is an abundant number, since it is smaller than the sum of its proper divisors (36607642).

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

33230420 is an equidigital number, since it uses as much as digits as its factorization.

33230420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 33230420 is about 5764.5832459945. The cubic root of 33230420 is about 321.4982476582.

Adding to 33230420 its reverse (2403233), we get a palindrome (35633653).

The spelling of 33230420 in words is "thirty-three million, two hundred thirty thousand, four hundred twenty".