33420024 has 48 divisors (see below), whose sum is σ = 98743320. Its totient is φ = 10127040.

The previous prime is 33420017. The next prime is 33420041. The reversal of 33420024 is 42002433.

It is a super-2 number, since 2×33420024² = 2233796008321152, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 33419979 and 33420006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20307 + ... + 21890.

Almost surely, 2^33420024 is an apocalyptic number.

It is an amenable number.

33420024 is an abundant number, since it is smaller than the sum of its proper divisors (65323296).

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

33420024 is a wasteful number, since it uses less digits than its factorization.

33420024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42220 (or 42213 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 33420024 is about 5781.0054488817. The cubic root of 33420024 is about 322.1085497483.

Adding to 33420024 its reverse (42002433), we get a palindrome (75422457).

The spelling of 33420024 in words is "thirty-three million, four hundred twenty thousand, twenty-four".