33742405 has 8 divisors (see below), whose sum is σ = 40979232. Its totient is φ = 26668368.

The previous prime is 33742349. The next prime is 33742417. The reversal of 33742405 is 50424733.

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 33742405 - 2²⁵ = 187973 is a prime.

It is a super-2 number, since 2×33742405² = 2277099790368050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40239 + ... + 41068.

It is an arithmetic number, because the mean of its divisors is an integer number (5122404).

Almost surely, 2^33742405 is an apocalyptic number.

It is an amenable number.

33742405 is a deficient number, since it is larger than the sum of its proper divisors (7236827).

33742405 is an equidigital number, since it uses as much as digits as its factorization.

33742405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81395.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 33742405 is about 5808.8213090093. The cubic root of 33742405 is about 323.1409603062.

The spelling of 33742405 in words is "thirty-three million, seven hundred forty-two thousand, four hundred five".