33429340 has 24 divisors (see below), whose sum is σ = 80230752. Its totient is φ = 11461440.

The previous prime is 33429323. The next prime is 33429343. The reversal of 33429340 is 4392433.

It is a super-2 number, since 2×33429340² = 2235041545671200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 33429299 and 33429308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33429343) 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, 119251 + ... + 119530.

It is an arithmetic number, because the mean of its divisors is an integer number (3342948).

Almost surely, 2^33429340 is an apocalyptic number.

It is an amenable number.

33429340 is an abundant number, since it is smaller than the sum of its proper divisors (46801412).

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

33429340 is a wasteful number, since it uses less digits than its factorization.

33429340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238797 (or 238795 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 33429340 is about 5781.8111349300. The cubic root of 33429340 is about 322.1384767611.

The spelling of 33429340 in words is "thirty-three million, four hundred twenty-nine thousand, three hundred forty".