42404066442 has 48 divisors (see below), whose sum is σ = 92848827240. Its totient is φ = 13985136000.

The previous prime is 42404066437. The next prime is 42404066447. The reversal of 42404066442 is 24466040424.

42404066442 is a `hidden beast` number, since 4 + 2 + 4 + 0 + 4 + 0 + 6 + 644 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (42404066437) and next prime (42404066447).

It can be written as a sum of positive squares in 4 ways, for example, as 42196965561 + 207100881 = 205419^2 + 14391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42404066397 and 42404066406.

It is not an unprimeable number, because it can be changed into a prime (42404066447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2939784 + ... + 2954172.

Almost surely, 2^42404066442 is an apocalyptic number.

42404066442 is an abundant number, since it is smaller than the sum of its proper divisors (50444760798).

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

42404066442 is a wasteful number, since it uses less digits than its factorization.

42404066442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16119 (or 16116 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The spelling of 42404066442 in words is "forty-two billion, four hundred four million, sixty-six thousand, four hundred forty-two".