33723742 has 16 divisors (see below), whose sum is σ = 54643680. Its totient is φ = 15517152.

The previous prime is 33723731. The next prime is 33723749. The reversal of 33723742 is 24732733.

It is a super-2 number, since 2×33723742² = 2274581548965128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33723749) by changing a digit.

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, 7528 + ... + 11140.

It is an arithmetic number, because the mean of its divisors is an integer number (3415230).

Almost surely, 2^33723742 is an apocalyptic number.

33723742 is a deficient number, since it is larger than the sum of its proper divisors (20919938).

33723742 is a wasteful number, since it uses less digits than its factorization.

33723742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987.

The product of its digits is 21168, while the sum is 31.

The square root of 33723742 is about 5807.2146507599. The cubic root of 33723742 is about 323.0813726552.

The spelling of 33723742 in words is "thirty-three million, seven hundred twenty-three thousand, seven hundred forty-two".