40444044442420 has 48 divisors (see below), whose sum is σ = 84972524370048. Its totient is φ = 16169994023040.

The previous prime is 40444044442411. The next prime is 40444044442433. The reversal of 40444044442420 is 2424444044404.

It is a congruent number.

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, 673016575 + ... + 673076665.

It is an arithmetic number, because the mean of its divisors is an integer number (1770260924376).

Almost surely, 2^{40444044442420} is an apocalyptic number.

It is an amenable number.

40444044442420 is an abundant number, since it is smaller than the sum of its proper divisors (44528479927628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40444044442420 is a wasteful number, since it uses less digits than its factorization.

40444044442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75400 (or 75398 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 40444044442420 its reverse (2424444044404), we get a palindrome (42868488486824).

The spelling of 40444044442420 in words is "forty trillion, four hundred forty-four billion, forty-four million, four hundred forty-two thousand, four hundred twenty".