7127400442 has 8 divisors (see below), whose sum is σ = 10704517236. Its totient is φ = 3559228032.

The previous prime is 7127400389. The next prime is 7127400487. The reversal of 7127400442 is 2440047217.

It can be written as a sum of positive squares in 2 ways, for example, as 6669825561 + 457574881 = 81669^2 + 21391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234103 + ... + 2237290.

Almost surely, 2^7127400442 is an apocalyptic number.

7127400442 is a deficient number, since it is larger than the sum of its proper divisors (3577116794).

7127400442 is a wasteful number, since it uses less digits than its factorization.

7127400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472192.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 7127400442 is about 84423.9328745114. The cubic root of 7127400442 is about 1924.4666373693.

Adding to 7127400442 its reverse (2440047217), we get a palindrome (9567447659).

The spelling of 7127400442 in words is "seven billion, one hundred twenty-seven million, four hundred thousand, four hundred forty-two".