33328020 has 48 divisors (see below), whose sum is σ = 101803968. Its totient is φ = 8079360.

The previous prime is 33327997. The next prime is 33328049. The reversal of 33328020 is 2082333.

It is a super-2 number, since 2×33328020² = 2221513834240800, 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 15 ways as a sum of consecutive naturals, for example, 24589 + ... + 25908.

It is an arithmetic number, because the mean of its divisors is an integer number (2120916).

Almost surely, 2^33328020 is an apocalyptic number.

33328020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33328020 is an abundant number, since it is smaller than the sum of its proper divisors (68475948).

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

33328020 is a wasteful number, since it uses less digits than its factorization.

33328020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50520 (or 50518 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 33328020 is about 5773.0425253933. The cubic root of 33328020 is about 321.8126940701.

The spelling of 33328020 in words is "thirty-three million, three hundred twenty-eight thousand, twenty".