40100784442 has 4 divisors (see below), whose sum is σ = 60151176666. Its totient is φ = 20050392220.

The previous prime is 40100784301. The next prime is 40100784473. The reversal of 40100784442 is 24448700104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34719241561 + 5381542881 = 186331^2 + 73359^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40100784398 and 40100784407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025196109 + ... + 10025196112.

Almost surely, 2^40100784442 is an apocalyptic number.

40100784442 is a deficient number, since it is larger than the sum of its proper divisors (20050392224).

40100784442 is a wasteful number, since it uses less digits than its factorization.

40100784442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20050392223.

The product of its (nonzero) digits is 28672, while the sum is 34.

The spelling of 40100784442 in words is "forty billion, one hundred million, seven hundred eighty-four thousand, four hundred forty-two".