33542047 has 18 divisors (see below), whose sum is σ = 42348264. Its totient is φ = 26005320.

The previous prime is 33542023. The next prime is 33542051. The reversal of 33542047 is 74024533.

It is not a de Polignac number, because 33542047 - 2⁷ = 33541919 is a prime.

It is a super-2 number, since 2×33542047² = 2250137833900418, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33542077) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 168454 + ... + 168652.

Almost surely, 2^33542047 is an apocalyptic number.

33542047 is a deficient number, since it is larger than the sum of its proper divisors (8806217).

33542047 is an equidigital number, since it uses as much as digits as its factorization.

33542047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 33542047 is about 5791.5496199204. The cubic root of 33542047 is about 322.5001005548.

Multiplying 33542047 by its sum of digits (28), we get a square (939177316 = 30646²).

The spelling of 33542047 in words is "thirty-three million, five hundred forty-two thousand, forty-seven".