33890149 has 16 divisors (see below), whose sum is σ = 36368640. Its totient is φ = 31530240.

The previous prime is 33890147. The next prime is 33890159. The reversal of 33890149 is 94109833.

It is a cyclic number.

It is not a de Polignac number, because 33890149 - 2¹ = 33890147 is a prime.

It is a super-2 number, since 2×33890149² = 2297084398484402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33890147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82657 + ... + 83065.

It is an arithmetic number, because the mean of its divisors is an integer number (2273040).

Almost surely, 2^33890149 is an apocalyptic number.

It is an amenable number.

33890149 is a deficient number, since it is larger than the sum of its proper divisors (2478491).

33890149 is a wasteful number, since it uses less digits than its factorization.

33890149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 33890149 is about 5821.5246284801. The cubic root of 33890149 is about 323.6119070377.

The spelling of 33890149 in words is "thirty-three million, eight hundred ninety thousand, one hundred forty-nine".