1402440322 has 4 divisors (see below), whose sum is σ = 2103660486. Its totient is φ = 701220160.

The previous prime is 1402440317. The next prime is 1402440329. The reversal of 1402440322 is 2230442041.

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., 933241401 + 469198921 = 30549^2 + 21661^2 .

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 a junction number, because it is equal to n+sod(n) for n = 1402440293 and 1402440302.

It is not an unprimeable number, because it can be changed into a prime (1402440329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350610079 + ... + 350610082.

Almost surely, 2^1402440322 is an apocalyptic number.

1402440322 is a deficient number, since it is larger than the sum of its proper divisors (701220164).

1402440322 is an equidigital number, since it uses as much as digits as its factorization.

1402440322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701220163.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1402440322 is about 37449.1698439365. The cubic root of 1402440322 is about 1119.3385555538.

Adding to 1402440322 its reverse (2230442041), we get a palindrome (3632882363).

The spelling of 1402440322 in words is "one billion, four hundred two million, four hundred forty thousand, three hundred twenty-two".