40430444 has 6 divisors (see below), whose sum is σ = 70753284. Its totient is φ = 20215220.

The previous prime is 40430419. The next prime is 40430447. The reversal of 40430444 is 44403404.

It is not an unprimeable number, because it can be changed into a prime (40430447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053802 + ... + 5053809.

It is an arithmetic number, because the mean of its divisors is an integer number (11792214).

Almost surely, 2^40430444 is an apocalyptic number.

It is an amenable number.

40430444 is a deficient number, since it is larger than the sum of its proper divisors (30322840).

40430444 is a wasteful number, since it uses less digits than its factorization.

40430444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10107615 (or 10107613 counting only the distinct ones).

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

The square root of 40430444 is about 6358.4938468162. The cubic root of 40430444 is about 343.2175632128.

Adding to 40430444 its reverse (44403404), we get a palindrome (84833848).

The spelling of 40430444 in words is "forty million, four hundred thirty thousand, four hundred forty-four".