202104003402 has 72 divisors (see below), whose sum is σ = 509855613696. Its totient is φ = 57690604944.

The previous prime is 202104003377. The next prime is 202104003407. The reversal of 202104003402 is 204300401202.

202104003402 is a `hidden beast` number, since 20 + 210 + 400 + 34 + 0 + 2 = 666.

It is a super-2 number, since 2×202104003402² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202104003407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 853333 + ... + 1064135.

It is an arithmetic number, because the mean of its divisors is an integer number (7081327968).

Almost surely, 2^202104003402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202104003402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254927806848).

202104003402 is an abundant number, since it is smaller than the sum of its proper divisors (307751610294).

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

202104003402 is a wasteful number, since it uses less digits than its factorization.

202104003402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211912 (or 211902 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 202104003402 its reverse (204300401202), we get a palindrome (406404404604).

The spelling of 202104003402 in words is "two hundred two billion, one hundred four million, three thousand, four hundred two".