1402402401 has 12 divisors (see below), whose sum is σ = 2030036112. Its totient is φ = 932930136.

The previous prime is 1402402363. The next prime is 1402402423. The reversal of 1402402401 is 1042042041.

It is not a de Polignac number, because 1402402401 - 2¹¹ = 1402400353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1402402451) 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 11 ways as a sum of consecutive naturals, for example, 162631 + ... + 171036.

It is an arithmetic number, because the mean of its divisors is an integer number (169169676).

Almost surely, 2^1402402401 is an apocalyptic number.

It is an amenable number.

1402402401 is a deficient number, since it is larger than the sum of its proper divisors (627633711).

1402402401 is a wasteful number, since it uses less digits than its factorization.

1402402401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334140 (or 334137 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1402402401 is about 37448.6635409062. The cubic root of 1402402401 is about 1119.3284667537.

Adding to 1402402401 its reverse (1042042041), we get a palindrome (2444444442).

The spelling of 1402402401 in words is "one billion, four hundred two million, four hundred two thousand, four hundred one".