10404401242 has 4 divisors (see below), whose sum is σ = 15606601866. Its totient is φ = 5202200620.

The previous prime is 10404401239. The next prime is 10404401261. The reversal of 10404401242 is 24210440401.

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., 8337698721 + 2066702521 = 91311^2 + 45461^2 .

It is a super-2 number, since 2×10404401242² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2601100309 + ... + 2601100312.

Almost surely, 2^10404401242 is an apocalyptic number.

10404401242 is a deficient number, since it is larger than the sum of its proper divisors (5202200624).

10404401242 is an equidigital number, since it uses as much as digits as its factorization.

10404401242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202200623.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 10404401242 its reverse (24210440401), we get a palindrome (34614841643).

The spelling of 10404401242 in words is "ten billion, four hundred four million, four hundred one thousand, two hundred forty-two".