40220244404442 has 32 divisors (see below), whose sum is σ = 93264334853760. Its totient is φ = 12823846041600.

The previous prime is 40220244404413. The next prime is 40220244404531. The reversal of 40220244404442 is 24440444202204.

40220244404442 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 0 + 244 + 404 + 4 + 4 + 2 = 666.

It is a super-2 number, since 2×40220244404442² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40220244404397 and 40220244404406.

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, 16191723559 + ... + 16191726042.

It is an arithmetic number, because the mean of its divisors is an integer number (2914510464180).

Almost surely, 2^{40220244404442} is an apocalyptic number.

40220244404442 is an abundant number, since it is smaller than the sum of its proper divisors (53044090449318).

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

40220244404442 is a wasteful number, since it uses less digits than its factorization.

40220244404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32383449635 (or 32383449629 counting only the distinct ones).

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

Adding to 40220244404442 its reverse (24440444202204), we get a palindrome (64660688606646).

The spelling of 40220244404442 in words is "forty trillion, two hundred twenty billion, two hundred forty-four million, four hundred four thousand, four hundred forty-two".