33421344 has 48 divisors (see below), whose sum is σ = 95709600. Its totient is φ = 10127360.

The previous prime is 33421331. The next prime is 33421387. The reversal of 33421344 is 44312433.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×33421344² = 2233972469532672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14769 + ... + 16880.

It is an arithmetic number, because the mean of its divisors is an integer number (1993950).

Almost surely, 2^33421344 is an apocalyptic number.

It is an amenable number.

33421344 is an abundant number, since it is smaller than the sum of its proper divisors (62288256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33421344 is a wasteful number, since it uses less digits than its factorization.

33421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31673 (or 31665 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 33421344 is about 5781.1196147459. The cubic root of 33421344 is about 322.1127904961.

Adding to 33421344 its reverse (44312433), we get a palindrome (77733777).

The spelling of 33421344 in words is "thirty-three million, four hundred twenty-one thousand, three hundred forty-four".