33423445 has 16 divisors (see below), whose sum is σ = 46329408. Its totient is φ = 22877440.

The previous prime is 33423437. The next prime is 33423473. The reversal of 33423445 is 54432433.

It is not a de Polignac number, because 33423445 - 2³ = 33423437 is a prime.

It is a super-2 number, since 2×33423445² = 2234253351336050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16939 + ... + 18808.

It is an arithmetic number, because the mean of its divisors is an integer number (2895588).

Almost surely, 2^33423445 is an apocalyptic number.

It is an amenable number.

33423445 is a deficient number, since it is larger than the sum of its proper divisors (12905963).

33423445 is a wasteful number, since it uses less digits than its factorization.

33423445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35780.

The product of its digits is 17280, while the sum is 28.

The square root of 33423445 is about 5781.3013240965. The cubic root of 33423445 is about 322.1195401229.

Adding to 33423445 its reverse (54432433), we get a palindrome (87855878).

The spelling of 33423445 in words is "thirty-three million, four hundred twenty-three thousand, four hundred forty-five".