33801009 has 16 divisors (see below), whose sum is σ = 49621440. Its totient is φ = 20295360.

The previous prime is 33800969. The next prime is 33801011. The reversal of 33801009 is 90010833.

It is not a de Polignac number, because 33801009 - 2¹³ = 33792817 is a prime.

It is a super-2 number, since 2×33801009² = 2285016418836162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33801009.

It is not an unprimeable number, because it can be changed into a prime (33801029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102 + ... + 8295.

It is an arithmetic number, because the mean of its divisors is an integer number (3101340).

Almost surely, 2^33801009 is an apocalyptic number.

It is an amenable number.

33801009 is a deficient number, since it is larger than the sum of its proper divisors (15820431).

33801009 is a wasteful number, since it uses less digits than its factorization.

33801009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9520.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 33801009 is about 5813.8635174899. The cubic root of 33801009 is about 323.3279297877.

The spelling of 33801009 in words is "thirty-three million, eight hundred one thousand, nine".