40442324 has 12 divisors (see below), whose sum is σ = 76218324. Its totient is φ = 18665664.

The previous prime is 40442323. The next prime is 40442341. The reversal of 40442324 is 42324404.

It can be written as a sum of positive squares in 2 ways, for example, as 8880400 + 31561924 = 2980^2 + 5618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40442324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388817 + ... + 388920.

It is an arithmetic number, because the mean of its divisors is an integer number (6351527).

Almost surely, 2^40442324 is an apocalyptic number.

It is an amenable number.

40442324 is a deficient number, since it is larger than the sum of its proper divisors (35776000).

40442324 is a wasteful number, since it uses less digits than its factorization.

40442324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777754 (or 777752 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 40442324 is about 6359.4279616959. The cubic root of 40442324 is about 343.2511767059.

Adding to 40442324 its reverse (42324404), we get a palindrome (82766728).

The spelling of 40442324 in words is "forty million, four hundred forty-two thousand, three hundred twenty-four".