33402423 has 8 divisors (see below), whose sum is σ = 44581888. Its totient is φ = 22245624.

The previous prime is 33402409. The next prime is 33402427. The reversal of 33402423 is 32420433.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33402423 - 2¹⁰ = 33401399 is a prime.

It is a super-2 number, since 2×33402423² = 2231443724541858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33402423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33402427) 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, 1861 + ... + 8382.

It is an arithmetic number, because the mean of its divisors is an integer number (5572736).

Almost surely, 2^33402423 is an apocalyptic number.

33402423 is a deficient number, since it is larger than the sum of its proper divisors (11179465).

33402423 is a wasteful number, since it uses less digits than its factorization.

33402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11333.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 33402423 is about 5779.4829353498. The cubic root of 33402423 is about 322.0519925560.

Adding to 33402423 its reverse (32420433), we get a palindrome (65822856).

The spelling of 33402423 in words is "thirty-three million, four hundred two thousand, four hundred twenty-three".