33144430 has 32 divisors (see below), whose sum is σ = 66199680. Its totient is φ = 11845920.

The previous prime is 33144413. The next prime is 33144481. The reversal of 33144430 is 3444133.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 3937 + ... + 9043.

It is an arithmetic number, because the mean of its divisors is an integer number (2068740).

Almost surely, 2^33144430 is an apocalyptic number.

33144430 is a deficient number, since it is larger than the sum of its proper divisors (33055250).

33144430 is a wasteful number, since it uses less digits than its factorization.

33144430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 33144430 is about 5757.1199396921. The cubic root of 33144430 is about 321.2206955964.

Adding to 33144430 its reverse (3444133), we get a palindrome (36588563).

It can be divided in two parts, 3314 and 4430, that added together give a square (7744 = 88²).

The spelling of 33144430 in words is "thirty-three million, one hundred forty-four thousand, four hundred thirty".