33157422 has 12 divisors (see below), whose sum is σ = 71841120. Its totient is φ = 11052468.

The previous prime is 33157387. The next prime is 33157427. The reversal of 33157422 is 22475133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33157427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 921022 + ... + 921057.

It is an arithmetic number, because the mean of its divisors is an integer number (5986760).

Almost surely, 2^33157422 is an apocalyptic number.

33157422 is an abundant number, since it is smaller than the sum of its proper divisors (38683698).

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

33157422 is a wasteful number, since it uses less digits than its factorization.

33157422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842087 (or 1842084 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 33157422 is about 5758.2481711020. The cubic root of 33157422 is about 321.2626609594.

The spelling of 33157422 in words is "thirty-three million, one hundred fifty-seven thousand, four hundred twenty-two".