40343504 has 10 divisors (see below), whose sum is σ = 78165570. Its totient is φ = 20171744.

The previous prime is 40343461. The next prime is 40343519. The reversal of 40343504 is 40534304.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37847104 + 2496400 = 6152^2 + 1580^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40343504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260719 + ... + 1260750.

It is an arithmetic number, because the mean of its divisors is an integer number (7816557).

Almost surely, 2^40343504 is an apocalyptic number.

It is an amenable number.

40343504 is a deficient number, since it is larger than the sum of its proper divisors (37822066).

40343504 is a wasteful number, since it uses less digits than its factorization.

40343504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521477 (or 2521471 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 40343504 is about 6351.6536429500. The cubic root of 40343504 is about 342.9713729165.

Adding to 40343504 its reverse (40534304), we get a palindrome (80877808).

The spelling of 40343504 in words is "forty million, three hundred forty-three thousand, five hundred four".