33166380 has 96 divisors (see below), whose sum is σ = 101239488. Its totient is φ = 8064000.

The previous prime is 33166379. The next prime is 33166403. The reversal of 33166380 is 8366133.

It is a super-2 number, since 2×33166380² = 2200017524608800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78570 + ... + 78990.

It is an arithmetic number, because the mean of its divisors is an integer number (1054578).

Almost surely, 2^33166380 is an apocalyptic number.

33166380 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 33166380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50619744).

33166380 is an abundant number, since it is smaller than the sum of its proper divisors (68073108).

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

33166380 is a wasteful number, since it uses less digits than its factorization.

33166380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 33166380 is about 5759.0259593094. The cubic root of 33166380 is about 321.2915897443.

The spelling of 33166380 in words is "thirty-three million, one hundred sixty-six thousand, three hundred eighty".