33400765 has 8 divisors (see below), whose sum is σ = 42190560. Its totient is φ = 25314192.

The previous prime is 33400753. The next prime is 33400769. The reversal of 33400765 is 56700433.

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

It is a cyclic number.

It is not a de Polignac number, because 33400765 - 2⁹ = 33400253 is a prime.

It is a super-2 number, since 2×33400765² = 2231222205170450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33400769) by changing a digit.

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, 175699 + ... + 175888.

It is an arithmetic number, because the mean of its divisors is an integer number (5273820).

Almost surely, 2^33400765 is an apocalyptic number.

It is an amenable number.

33400765 is a deficient number, since it is larger than the sum of its proper divisors (8789795).

33400765 is a wasteful number, since it uses less digits than its factorization.

33400765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351611.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 33400765 is about 5779.3394951326. The cubic root of 33400765 is about 322.0466638903.

The spelling of 33400765 in words is "thirty-three million, four hundred thousand, seven hundred sixty-five".