33640914 has 16 divisors (see below), whose sum is σ = 67366080. Its totient is φ = 11199600.

The previous prime is 33640913. The next prime is 33640961. The reversal of 33640914 is 41904633.

It is a super-2 number, since 2×33640914² = 2263422189510792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33640913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2464 + ... + 8564.

It is an arithmetic number, because the mean of its divisors is an integer number (4210380).

Almost surely, 2^33640914 is an apocalyptic number.

33640914 is an abundant number, since it is smaller than the sum of its proper divisors (33725166).

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

33640914 is a wasteful number, since it uses less digits than its factorization.

33640914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7025.

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

The square root of 33640914 is about 5800.0787925683. The cubic root of 33640914 is about 322.8166519113.

The spelling of 33640914 in words is "thirty-three million, six hundred forty thousand, nine hundred fourteen".