33538023 has 16 divisors (see below), whose sum is σ = 49885440. Its totient is φ = 22268952.

The previous prime is 33538013. The next prime is 33538027. The reversal of 33538023 is 32083533.

It is a happy number.

It is not a de Polignac number, because 33538023 - 2⁸ = 33537767 is a prime.

It is a super-2 number, since 2×33538023² = 2249597973497058, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33538027) 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, 4740 + ... + 9462.

It is an arithmetic number, because the mean of its divisors is an integer number (3117840).

Almost surely, 2^33538023 is an apocalyptic number.

33538023 is a deficient number, since it is larger than the sum of its proper divisors (16347417).

33538023 is a wasteful number, since it uses less digits than its factorization.

33538023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995 (or 4989 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 33538023 is about 5791.2022067961. The cubic root of 33538023 is about 322.4872033862.

The spelling of 33538023 in words is "thirty-three million, five hundred thirty-eight thousand, twenty-three".