33540342 has 16 divisors (see below), whose sum is σ = 73179072. Its totient is φ = 10163720.

The previous prime is 33540317. The next prime is 33540343. The reversal of 33540342 is 24304533.

It is a super-2 number, since 2×33540342² = 2249909082953928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33540343) 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, 254028 + ... + 254159.

It is an arithmetic number, because the mean of its divisors is an integer number (4573692).

Almost surely, 2^33540342 is an apocalyptic number.

33540342 is an abundant number, since it is smaller than the sum of its proper divisors (39638730).

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

33540342 is a wasteful number, since it uses less digits than its factorization.

33540342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508203.

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

The square root of 33540342 is about 5791.4024208304. The cubic root of 33540342 is about 322.4946360504.

Adding to 33540342 its reverse (24304533), we get a palindrome (57844875).

The spelling of 33540342 in words is "thirty-three million, five hundred forty thousand, three hundred forty-two".