202040402 has 8 divisors (see below), whose sum is σ = 310108656. Its totient is φ = 98670852.

The previous prime is 202040401. The next prime is 202040431. The reversal of 202040402 is 204040202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (202040401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174568 + ... + 1174739.

It is an arithmetic number, because the mean of its divisors is an integer number (38763582).

Almost surely, 2^202040402 is an apocalyptic number.

202040402 is a deficient number, since it is larger than the sum of its proper divisors (108068254).

202040402 is a wasteful number, since it uses less digits than its factorization.

202040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349352.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 202040402 is about 14214.0916698887. The cubic root of 202040402 is about 586.7855466017.

Adding to 202040402 its reverse (204040202), we get a palindrome (406080604).

The spelling of 202040402 in words is "two hundred two million, forty thousand, four hundred two".