33400669 has 4 divisors (see below), whose sum is σ = 34852896. Its totient is φ = 31948444.

The previous prime is 33400649. The next prime is 33400673. The reversal of 33400669 is 96600433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33400669 - 2⁷ = 33400541 is a prime.

It is a super-2 number, since 2×33400669² = 2231209379295122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33400669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33400649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726079 + ... + 726124.

It is an arithmetic number, because the mean of its divisors is an integer number (8713224).

Almost surely, 2^33400669 is an apocalyptic number.

It is an amenable number.

33400669 is a deficient number, since it is larger than the sum of its proper divisors (1452227).

33400669 is a wasteful number, since it uses less digits than its factorization.

33400669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452226.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 33400669 is about 5779.3311896793. The cubic root of 33400669 is about 322.0463553494.

The spelling of 33400669 in words is "thirty-three million, four hundred thousand, six hundred sixty-nine".