33166940 has 24 divisors (see below), whose sum is σ = 70634592. Its totient is φ = 13079360.

The previous prime is 33166937. The next prime is 33166961. The reversal of 33166940 is 4966133.

It is a happy number.

It is a super-2 number, since 2×33166940² = 2200091817927200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33166897 and 33166906.

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, 10259 + ... + 13098.

It is an arithmetic number, because the mean of its divisors is an integer number (2943108).

Almost surely, 2^33166940 is an apocalyptic number.

It is an amenable number.

33166940 is an abundant number, since it is smaller than the sum of its proper divisors (37467652).

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

33166940 is a wasteful number, since it uses less digits than its factorization.

33166940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23437 (or 23435 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 33166940 is about 5759.0745784371. The cubic root of 33166940 is about 321.2933980241.

The spelling of 33166940 in words is "thirty-three million, one hundred sixty-six thousand, nine hundred forty".