1401002402 has 16 divisors (see below), whose sum is σ = 2226877272. Its totient is φ = 658775040.

The previous prime is 1401002399. The next prime is 1401002429. The reversal of 1401002402 is 2042001041.

It can be written as a sum of positive squares in 4 ways, for example, as 1400930041 + 72361 = 37429^2 + 269^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29318 + ... + 60510.

Almost surely, 2^1401002402 is an apocalyptic number.

1401002402 is a deficient number, since it is larger than the sum of its proper divisors (825874870).

1401002402 is a wasteful number, since it uses less digits than its factorization.

1401002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32533.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1401002402 is about 37429.9666310297. The cubic root of 1401002402 is about 1118.9558726775.

Adding to 1401002402 its reverse (2042001041), we get a palindrome (3443003443).

The spelling of 1401002402 in words is "one billion, four hundred one million, two thousand, four hundred two".