404023311033442 has 16 divisors (see below), whose sum is σ = 640271718149760. Its totient is φ = 190895827075408.

The previous prime is 404023311033371. The next prime is 404023311033499. The reversal of 404023311033442 is 244330113320404.

It is a super-2 number, since 2×404023311033442² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404023311033398 and 404023311033407.

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, 74105520208 + ... + 74105525659.

It is an arithmetic number, because the mean of its divisors is an integer number (40016982384360).

Almost surely, 2^{404023311033442} is an apocalyptic number.

404023311033442 is a deficient number, since it is larger than the sum of its proper divisors (236248407116318).

404023311033442 is a wasteful number, since it uses less digits than its factorization.

404023311033442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148211045945.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 404023311033442 its reverse (244330113320404), we get a palindrome (648353424353846).

The spelling of 404023311033442 in words is "four hundred four trillion, twenty-three billion, three hundred eleven million, thirty-three thousand, four hundred forty-two".