33401023 has 4 divisors (see below), whose sum is σ = 33415128. Its totient is φ = 33386920.

The previous prime is 33401009. The next prime is 33401029. The reversal of 33401023 is 32010433.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33401023 - 2⁹ = 33400511 is a prime.

It is a super-2 number, since 2×33401023² = 2231256674893058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33400988 and 33401006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33401029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2536 + ... + 8557.

It is an arithmetic number, because the mean of its divisors is an integer number (8353782).

Almost surely, 2^33401023 is an apocalyptic number.

33401023 is a deficient number, since it is larger than the sum of its proper divisors (14105).

33401023 is a wasteful number, since it uses less digits than its factorization.

33401023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 33401023 is about 5779.3618159793. The cubic root of 33401023 is about 322.0474930912.

Adding to 33401023 its reverse (32010433), we get a palindrome (65411456).

The spelling of 33401023 in words is "thirty-three million, four hundred one thousand, twenty-three".