1401442402 has 8 divisors (see below), whose sum is σ = 2153436012. Its totient is φ = 683630400.

The previous prime is 1401442351. The next prime is 1401442403. The reversal of 1401442402 is 2042441041.

It can be written as a sum of positive squares in 2 ways, for example, as 1394200921 + 7241481 = 37339^2 + 2691^2 .

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

It is a super-2 number, since 2×1401442402² = 3928081612247059208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401442403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8545299 + ... + 8545462.

Almost surely, 2^1401442402 is an apocalyptic number.

1401442402 is a deficient number, since it is larger than the sum of its proper divisors (751993610).

1401442402 is a wasteful number, since it uses less digits than its factorization.

1401442402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17090804.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1401442402 is about 37435.8438131158. The cubic root of 1401442402 is about 1119.0730004927.

Adding to 1401442402 its reverse (2042441041), we get a palindrome (3443883443).

The spelling of 1401442402 in words is "one billion, four hundred one million, four hundred forty-two thousand, four hundred two".