202140402 has 8 divisors (see below), whose sum is σ = 404280816. Its totient is φ = 67380132.

The previous prime is 202140383. The next prime is 202140443. The reversal of 202140402 is 204041202.

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

202140402 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16845028 + ... + 16845039.

It is an arithmetic number, because the mean of its divisors is an integer number (50535102).

Almost surely, 2^202140402 is an apocalyptic number.

202140402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

202140402 is a wasteful number, since it uses less digits than its factorization.

202140402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33690072.

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

The square root of 202140402 is about 14217.6088706927. The cubic root of 202140402 is about 586.8823405692.

Adding to 202140402 its reverse (204041202), we get a palindrome (406181604).

The spelling of 202140402 in words is "two hundred two million, one hundred forty thousand, four hundred two".