33540534 has 32 divisors (see below), whose sum is σ = 74844000. Its totient is φ = 11133792.

The previous prime is 33540517. The next prime is 33540539. The reversal of 33540534 is 43504533.

It is a happy number.

It is a super-2 number, since 2×33540534² = 2249934842010312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 33540498 and 33540507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33540539) 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, 13372 + ... + 15680.

It is an arithmetic number, because the mean of its divisors is an integer number (2338875).

Almost surely, 2^33540534 is an apocalyptic number.

33540534 is an abundant number, since it is smaller than the sum of its proper divisors (41303466).

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

33540534 is a wasteful number, since it uses less digits than its factorization.

33540534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2583 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 33540534 is about 5791.4189971025. The cubic root of 33540534 is about 322.4952514174.

The spelling of 33540534 in words is "thirty-three million, five hundred forty thousand, five hundred thirty-four".