33474840 has 96 divisors (see below), whose sum is σ = 116840880. Its totient is φ = 7650048.

The previous prime is 33474829. The next prime is 33474841. The reversal of 33474840 is 4847433.

It is a super-2 number, since 2×33474840² = 2241129826051200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33474841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3034 + ... + 8726.

Almost surely, 2^33474840 is an apocalyptic number.

33474840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33474840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58420440).

33474840 is an abundant number, since it is smaller than the sum of its proper divisors (83366040).

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

33474840 is a wasteful number, since it uses less digits than its factorization.

33474840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721 (or 5710 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 33474840 is about 5785.7445501854. The cubic root of 33474840 is about 322.2845625628.

The spelling of 33474840 in words is "thirty-three million, four hundred seventy-four thousand, eight hundred forty".