33540234 has 64 divisors (see below), whose sum is σ = 84381696. Its totient is φ = 8650944.

The previous prime is 33540229. The next prime is 33540239. The reversal of 33540234 is 43204533.

It is an interprime number because it is at equal distance from previous prime (33540229) and next prime (33540239).

It is a super-2 number, since 2×33540234² = 2249894593549512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33540239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25009 + ... + 26315.

It is an arithmetic number, because the mean of its divisors is an integer number (1318464).

Almost surely, 2^33540234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33540234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42190848).

33540234 is an abundant number, since it is smaller than the sum of its proper divisors (50841462).

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

33540234 is a wasteful number, since it uses less digits than its factorization.

33540234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 33540234 is about 5791.3930966565. The cubic root of 33540234 is about 322.4942899055.

Adding to 33540234 its reverse (43204533), we get a palindrome (76744767).

The spelling of 33540234 in words is "thirty-three million, five hundred forty thousand, two hundred thirty-four".