33538494 has 16 divisors (see below), whose sum is σ = 73175040. Its totient is φ = 10163160.

The previous prime is 33538481. The next prime is 33538499. The reversal of 33538494 is 49483533.

It is a super-2 number, since 2×33538494² = 2249661159576072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33538499) 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, 254014 + ... + 254145.

It is an arithmetic number, because the mean of its divisors is an integer number (4573440).

Almost surely, 2^33538494 is an apocalyptic number.

33538494 is an abundant number, since it is smaller than the sum of its proper divisors (39636546).

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

33538494 is a wasteful number, since it uses less digits than its factorization.

33538494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508175.

The product of its digits is 155520, while the sum is 39.

The square root of 33538494 is about 5791.2428717850. The cubic root of 33538494 is about 322.4887130236.

The spelling of 33538494 in words is "thirty-three million, five hundred thirty-eight thousand, four hundred ninety-four".