33454420 has 24 divisors (see below), whose sum is σ = 73309824. Its totient is φ = 12799776.

The previous prime is 33454417. The next prime is 33454433. The reversal of 33454420 is 2445433.

It is a super-2 number, since 2×33454420² = 2238396435072800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35904 + ... + 36823.

It is an arithmetic number, because the mean of its divisors is an integer number (3054576).

Almost surely, 2^33454420 is an apocalyptic number.

It is an amenable number.

33454420 is an abundant number, since it is smaller than the sum of its proper divisors (39855404).

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

33454420 is a wasteful number, since it uses less digits than its factorization.

33454420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72759 (or 72757 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 33454420 is about 5783.9795988575. The cubic root of 33454420 is about 322.2190169232.

Adding to 33454420 its reverse (2445433), we get a palindrome (35899853).

The spelling of 33454420 in words is "thirty-three million, four hundred fifty-four thousand, four hundred twenty".