40342444 has 12 divisors (see below), whose sum is σ = 70645624. Its totient is φ = 20157984.

The previous prime is 40342441. The next prime is 40342481. The reversal of 40342444 is 44424304.

It is not an unprimeable number, because it can be changed into a prime (40342441) 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, 7387 + ... + 11629.

Almost surely, 2^40342444 is an apocalyptic number.

It is an amenable number.

40342444 is a deficient number, since it is larger than the sum of its proper divisors (30303180).

40342444 is a wasteful number, since it uses less digits than its factorization.

40342444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624 (or 6622 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 40342444 is about 6351.5701995648. The cubic root of 40342444 is about 342.9683691050.

Adding to 40342444 its reverse (44424304), we get a palindrome (84766748).

The spelling of 40342444 in words is "forty million, three hundred forty-two thousand, four hundred forty-four".