40240444442 has 32 divisors (see below), whose sum is σ = 66555998784. Its totient is φ = 18094752000.

The previous prime is 40240444379. The next prime is 40240444463. The reversal of 40240444442 is 24444404204.

It is a junction number, because it is equal to n+sod(n) for n = 40240444399 and 40240444408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2874953 + ... + 2888915.

It is an arithmetic number, because the mean of its divisors is an integer number (2079874962).

Almost surely, 2^40240444442 is an apocalyptic number.

40240444442 is a deficient number, since it is larger than the sum of its proper divisors (26315554342).

40240444442 is a wasteful number, since it uses less digits than its factorization.

40240444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15374.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40240444442 its reverse (24444404204), we get a palindrome (64684848646).

The spelling of 40240444442 in words is "forty billion, two hundred forty million, four hundred forty-four thousand, four hundred forty-two".