1402131442 has 8 divisors (see below), whose sum is σ = 2103461676. Its totient is φ = 700977552.

The previous prime is 1402131433. The next prime is 1402131443. The reversal of 1402131442 is 2441312041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1226330361 + 175801081 = 35019^2 + 13259^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1402131443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21993 + ... + 57340.

Almost surely, 2^1402131442 is an apocalyptic number.

1402131442 is a deficient number, since it is larger than the sum of its proper divisors (701330234).

1402131442 is an equidigital number, since it uses as much as digits as its factorization.

1402131442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88172.

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

The square root of 1402131442 is about 37445.0456268917. The cubic root of 1402131442 is about 1119.2563734047.

Adding to 1402131442 its reverse (2441312041), we get a palindrome (3843443483).

The spelling of 1402131442 in words is "one billion, four hundred two million, one hundred thirty-one thousand, four hundred forty-two".