10042440442 has 4 divisors (see below), whose sum is σ = 15063660666. Its totient is φ = 5021220220.

The previous prime is 10042440437. The next prime is 10042440467. The reversal of 10042440442 is 24404424001.

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., 5396518521 + 4645921921 = 73461^2 + 68161^2 .

It is a super-2 number, since 2×10042440442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2510610109 + ... + 2510610112.

Almost surely, 2^10042440442 is an apocalyptic number.

10042440442 is a deficient number, since it is larger than the sum of its proper divisors (5021220224).

10042440442 is an equidigital number, since it uses as much as digits as its factorization.

10042440442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021220223.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 10042440442 its reverse (24404424001), we get a palindrome (34446864443).

The spelling of 10042440442 in words is "ten billion, forty-two million, four hundred forty thousand, four hundred forty-two".