404042241222154 has 16 divisors (see below), whose sum is σ = 626962821748200. Its totient is φ = 195054650046144.

The previous prime is 404042241222143. The next prime is 404042241222187. The reversal of 404042241222154 is 451222142240404.

It can be written as a sum of positive squares in 4 ways, for example, as 276852227821129 + 127190013401025 = 16638877^2 + 11277855^2 .

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, 53800552 + ... + 60848860.

Almost surely, 2^{404042241222154} is an apocalyptic number.

404042241222154 is a deficient number, since it is larger than the sum of its proper divisors (222920580526046).

404042241222154 is a wasteful number, since it uses less digits than its factorization.

404042241222154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8036697.

The product of its (nonzero) digits is 163840, while the sum is 37.

Adding to 404042241222154 its reverse (451222142240404), we get a palindrome (855264383462558).

The spelling of 404042241222154 in words is "four hundred four trillion, forty-two billion, two hundred forty-one million, two hundred twenty-two thousand, one hundred fifty-four".