33408985 has 8 divisors (see below), whose sum is σ = 40181256. Its totient is φ = 26666880.

The previous prime is 33408971. The next prime is 33408997. The reversal of 33408985 is 58980433.

It can be written as a sum of positive squares in 4 ways, for example, as 644809 + 32764176 = 803^2 + 5724^2 .

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

It is not a de Polignac number, because 33408985 - 2¹³ = 33400793 is a prime.

It is a super-2 number, since 2×33408985² = 2232320557460450, which contains 22 as substring.

It is a Duffinian 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, 5026 + ... + 9595.

It is an arithmetic number, because the mean of its divisors is an integer number (5022657).

Almost surely, 2^33408985 is an apocalyptic number.

It is an amenable number.

33408985 is a deficient number, since it is larger than the sum of its proper divisors (6772271).

33408985 is a wasteful number, since it uses less digits than its factorization.

33408985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 33408985 is about 5780.0506053148. The cubic root of 33408985 is about 322.0730805153.

The spelling of 33408985 in words is "thirty-three million, four hundred eight thousand, nine hundred eighty-five".