33030040 has 32 divisors (see below), whose sum is σ = 75048480. Its totient is φ = 13082112.

The previous prime is 33030007. The next prime is 33030073. The reversal of 33030040 is 4003033.

It is an interprime number because it is at equal distance from previous prime (33030007) and next prime (33030073).

It is a self number, because there is not a number n which added to its sum of digits gives 33030040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 8128.

It is an arithmetic number, because the mean of its divisors is an integer number (2345265).

Almost surely, 2^33030040 is an apocalyptic number.

It is an amenable number.

33030040 is an abundant number, since it is smaller than the sum of its proper divisors (42018440).

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

33030040 is a wasteful number, since it uses less digits than its factorization.

33030040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131 (or 8127 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 13.

The square root of 33030040 is about 5747.1766981710. The cubic root of 33030040 is about 320.8507310893.

Adding to 33030040 its reverse (4003033), we get a palindrome (37033073).

The spelling of 33030040 in words is "thirty-three million, thirty thousand, forty".