33538090 has 16 divisors (see below), whose sum is σ = 60435072. Its totient is φ = 13400464.

The previous prime is 33538081. The next prime is 33538091. The reversal of 33538090 is 9083533.

It is a super-2 number, since 2×33538090² = 2249606961696200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33538091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15027 + ... + 17113.

It is an arithmetic number, because the mean of its divisors is an integer number (3777192).

Almost surely, 2^33538090 is an apocalyptic number.

33538090 is a deficient number, since it is larger than the sum of its proper divisors (26896982).

33538090 is a wasteful number, since it uses less digits than its factorization.

33538090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 33538090 is about 5791.2079914298. The cubic root of 33538090 is about 322.4874181338.

The spelling of 33538090 in words is "thirty-three million, five hundred thirty-eight thousand, ninety".