33180738 has 8 divisors (see below), whose sum is σ = 66361488. Its totient is φ = 11060244.

The previous prime is 33180737. The next prime is 33180751. The reversal of 33180738 is 83708133.

It is a sphenic number, since it is the product of 3 distinct primes.

33180738 is an admirable number.

It is a super-2 number, since 2×33180738² = 2201922748449288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33180699 and 33180708.

It is not an unprimeable number, because it can be changed into a prime (33180737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2765056 + ... + 2765067.

It is an arithmetic number, because the mean of its divisors is an integer number (8295186).

Almost surely, 2^33180738 is an apocalyptic number.

33180738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33180738 is a wasteful number, since it uses less digits than its factorization.

33180738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530128.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 33180738 is about 5760.2723893927. The cubic root of 33180738 is about 321.3379463171.

The spelling of 33180738 in words is "thirty-three million, one hundred eighty thousand, seven hundred thirty-eight".