42400440402444 has 24 divisors (see below), whose sum is σ = 109927067710320. Its totient is φ = 14133480134112.

The previous prime is 42400440402323. The next prime is 42400440402517. The reversal of 42400440402444 is 44420404400424.

42400440402444 is a `hidden beast` number, since 4 + 2 + 4 + 0 + 0 + 4 + 404 + 0 + 244 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42400440402399 and 42400440402408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196298335089 + ... + 196298335304.

It is an arithmetic number, because the mean of its divisors is an integer number (4580294487930).

Almost surely, 2^{42400440402444} is an apocalyptic number.

It is an amenable number.

42400440402444 is an abundant number, since it is smaller than the sum of its proper divisors (67526627307876).

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

42400440402444 is a wasteful number, since it uses less digits than its factorization.

42400440402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392596670406 (or 392596670398 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 36.

Adding to 42400440402444 its reverse (44420404400424), we get a palindrome (86820844802868).

The spelling of 42400440402444 in words is "forty-two trillion, four hundred billion, four hundred forty million, four hundred two thousand, four hundred forty-four".