40444020224 has 20 divisors (see below), whose sum is σ = 80809049244. Its totient is φ = 20222009856.

The previous prime is 40444020181. The next prime is 40444020233. The reversal of 40444020224 is 42202044404.

It is a junction number, because it is equal to n+sod(n) for n = 40444020193 and 40444020202.

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, 39495602 + ... + 39496625.

Almost surely, 2^40444020224 is an apocalyptic number.

It is an amenable number.

40444020224 is a deficient number, since it is larger than the sum of its proper divisors (40365029020).

40444020224 is an frugal number, since it uses more digits than its factorization.

40444020224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78992245 (or 78992229 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40444020224 its reverse (42202044404), we get a palindrome (82646064628).

The spelling of 40444020224 in words is "forty billion, four hundred forty-four million, twenty thousand, two hundred twenty-four".