202104120402 has 48 divisors (see below), whose sum is σ = 439749378432. Its totient is φ = 67082605920.

The previous prime is 202104120331. The next prime is 202104120409. The reversal of 202104120402 is 204021401202.

202104120402 is a `hidden beast` number, since 2 + 0 + 210 + 412 + 0 + 40 + 2 = 666.

It is a super-2 number, since 2×202104120402² (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 (202104120409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9730993 + ... + 9751739.

It is an arithmetic number, because the mean of its divisors is an integer number (9161445384).

Almost surely, 2^202104120402 is an apocalyptic number.

202104120402 is an abundant number, since it is smaller than the sum of its proper divisors (237645258030).

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

202104120402 is a wasteful number, since it uses less digits than its factorization.

202104120402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23023 (or 23020 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202104120402 its reverse (204021401202), we get a palindrome (406125521604).

The spelling of 202104120402 in words is "two hundred two billion, one hundred four million, one hundred twenty thousand, four hundred two".