40444450 has 48 divisors (see below), whose sum is σ = 78198120. Its totient is φ = 15552000.

The previous prime is 40444447. The next prime is 40444451. The reversal of 40444450 is 5444404.

It can be written as a sum of positive squares in 12 ways, for example, as 2879809 + 37564641 = 1697^2 + 6129^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (40444451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223360 + ... + 223540.

Almost surely, 2^40444450 is an apocalyptic number.

40444450 is a deficient number, since it is larger than the sum of its proper divisors (37753670).

40444450 is a wasteful number, since it uses less digits than its factorization.

40444450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 40444450 is about 6359.5951128983. The cubic root of 40444450 is about 343.2571913554.

Adding to 40444450 its reverse (5444404), we get a palindrome (45888854).

The spelling of 40444450 in words is "forty million, four hundred forty-four thousand, four hundred fifty".