402100402 has 16 divisors (see below), whose sum is σ = 660367872. Its totient is φ = 182110320.

The previous prime is 402100373. The next prime is 402100403. The reversal of 402100402 is 204001204.

It is not an unprimeable number, because it can be changed into a prime (402100403) 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 7 ways as a sum of consecutive naturals, for example, 26898 + ... + 39085.

It is an arithmetic number, because the mean of its divisors is an integer number (41272992).

Almost surely, 2^402100402 is an apocalyptic number.

402100402 is a deficient number, since it is larger than the sum of its proper divisors (258267470).

402100402 is a wasteful number, since it uses less digits than its factorization.

402100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66273.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 402100402 is about 20052.4412977572. The cubic root of 402100402 is about 738.0937068116.

Adding to 402100402 its reverse (204001204), we get a palindrome (606101606).

The spelling of 402100402 in words is "four hundred two million, one hundred thousand, four hundred two".