33540423 has 16 divisors (see below), whose sum is σ = 51949056. Its totient is φ = 18851040.

The previous prime is 33540421. The next prime is 33540427. The reversal of 33540423 is 32404533.

It is not a de Polignac number, because 33540423 - 2¹ = 33540421 is a prime.

It is a super-2 number, since 2×33540423² = 2249919950037858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33540393 and 33540402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33540421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11811 + ... + 14372.

It is an arithmetic number, because the mean of its divisors is an integer number (3246816).

Almost surely, 2^33540423 is an apocalyptic number.

33540423 is a deficient number, since it is larger than the sum of its proper divisors (18408633).

33540423 is a wasteful number, since it uses less digits than its factorization.

33540423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26254.

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

The square root of 33540423 is about 5791.4094139510. The cubic root of 33540423 is about 322.4948956587.

Adding to 33540423 its reverse (32404533), we get a palindrome (65944956).

The spelling of 33540423 in words is "thirty-three million, five hundred forty thousand, four hundred twenty-three".