402002003402 has 16 divisors (see below), whose sum is σ = 639885286080. Its totient is φ = 189003151392.

The previous prime is 402002003399. The next prime is 402002003413. The reversal of 402002003402 is 204300200204.

It is a super-2 number, since 2×402002003402² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74058083 + ... + 74063510.

It is an arithmetic number, because the mean of its divisors is an integer number (39992830380).

Almost surely, 2^402002003402 is an apocalyptic number.

402002003402 is a deficient number, since it is larger than the sum of its proper divisors (237883282678).

402002003402 is a wasteful number, since it uses less digits than its factorization.

402002003402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148121677.

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 402002003402 its reverse (204300200204), we get a palindrome (606302203606).

The spelling of 402002003402 in words is "four hundred two billion, two million, three thousand, four hundred two".