1401312442 has 4 divisors (see below), whose sum is σ = 2101968666. Its totient is φ = 700656220.

The previous prime is 1401312439. The next prime is 1401312443. The reversal of 1401312442 is 2442131041.

It is a happy number.

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., 1237702761 + 163609681 = 35181^2 + 12791^2 .

It is not an unprimeable number, because it can be changed into a prime (1401312443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350328109 + ... + 350328112.

Almost surely, 2^1401312442 is an apocalyptic number.

1401312442 is a deficient number, since it is larger than the sum of its proper divisors (700656224).

1401312442 is an equidigital number, since it uses as much as digits as its factorization.

1401312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700656223.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1401312442 is about 37434.1080032635. The cubic root of 1401312442 is about 1119.0384077468.

Adding to 1401312442 its reverse (2442131041), we get a palindrome (3843443483).

The spelling of 1401312442 in words is "one billion, four hundred one million, three hundred twelve thousand, four hundred forty-two".