33158742 has 16 divisors (see below), whose sum is σ = 66609840. Its totient is φ = 11004192.

The previous prime is 33158731. The next prime is 33158753. The reversal of 33158742 is 24785133.

It is an interprime number because it is at equal distance from previous prime (33158731) and next prime (33158753).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10693 + ... + 13440.

It is an arithmetic number, because the mean of its divisors is an integer number (4163115).

Almost surely, 2^33158742 is an apocalyptic number.

33158742 is an abundant number, since it is smaller than the sum of its proper divisors (33451098).

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

33158742 is a wasteful number, since it uses less digits than its factorization.

33158742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24367.

The product of its digits is 20160, while the sum is 33.

The square root of 33158742 is about 5758.3627881543. The cubic root of 33158742 is about 321.2669240681.

The spelling of 33158742 in words is "thirty-three million, one hundred fifty-eight thousand, seven hundred forty-two".