402102402 has 16 divisors (see below), whose sum is σ = 866066880. Its totient is φ = 123723792.

The previous prime is 402102401. The next prime is 402102403. The reversal of 402102402 is 204201204.

It is an interprime number because it is at equal distance from previous prime (402102401) and next prime (402102403).

It is not an unprimeable number, because it can be changed into a prime (402102401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577502 + ... + 2577657.

It is an arithmetic number, because the mean of its divisors is an integer number (54129180).

Almost surely, 2^402102402 is an apocalyptic number.

402102402 is an abundant number, since it is smaller than the sum of its proper divisors (463964478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402102402 is a wasteful number, since it uses less digits than its factorization.

402102402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155177.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 402102402 is about 20052.4911669348. The cubic root of 402102402 is about 738.0949305400.

Adding to 402102402 its reverse (204201204), we get a palindrome (606303606).

The spelling of 402102402 in words is "four hundred two million, one hundred two thousand, four hundred two".