40448449924 has 9 divisors (see below), whose sum is σ = 70785491287. Its totient is φ = 20224023844.

The previous prime is 40448449907. The next prime is 40448449927. The reversal of 40448449924 is 42994484404.

It is a happy number.

The square root of 40448449924 is 201118.

It is a perfect power (a square), and thus also a powerful number.

40448449924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40448449927) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 351957 + ... + 452515.

Almost surely, 2^40448449924 is an apocalyptic number.

40448449924 is the 201118-th square number.

It is an amenable number.

40448449924 is a deficient number, since it is larger than the sum of its proper divisors (30337041363).

40448449924 is an frugal number, since it uses more digits than its factorization.

40448449924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201122 (or 100561 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 40448449924 in words is "forty billion, four hundred forty-eight million, four hundred forty-nine thousand, nine hundred twenty-four".