43390144 has 56 divisors (see below), whose sum is σ = 102705408. Its totient is φ = 17783040.

The previous prime is 43390133. The next prime is 43390153. The reversal of 43390144 is 44109334.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 8199 + ... + 12409.

Almost surely, 2^43390144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43390144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51352704).

43390144 is an abundant number, since it is smaller than the sum of its proper divisors (59315264).

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

43390144 is a wasteful number, since it uses less digits than its factorization.

43390144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253 (or 4243 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 43390144 is about 6587.1195525814. The cubic root of 43390144 is about 351.3961755293.

Adding to 43390144 its reverse (44109334), we get a palindrome (87499478).

It can be divided in two parts, 43390 and 144, that added together give a palindrome (43534).

The spelling of 43390144 in words is "forty-three million, three hundred ninety thousand, one hundred forty-four".