33158442 has 8 divisors (see below), whose sum is σ = 66316896. Its totient is φ = 11052812.

The previous prime is 33158429. The next prime is 33158471. The reversal of 33158442 is 24485133.

It is a sphenic number, since it is the product of 3 distinct primes.

33158442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763198 + ... + 2763209.

It is an arithmetic number, because the mean of its divisors is an integer number (8289612).

Almost surely, 2^33158442 is an apocalyptic number.

33158442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33158442 is a wasteful number, since it uses less digits than its factorization.

33158442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526412.

The product of its digits is 11520, while the sum is 30.

The square root of 33158442 is about 5758.3367390246. The cubic root of 33158442 is about 321.2659551897.

The spelling of 33158442 in words is "thirty-three million, one hundred fifty-eight thousand, four hundred forty-two".