202012004 has 6 divisors (see below), whose sum is σ = 353521014. Its totient is φ = 101006000.

The previous prime is 202012001. The next prime is 202012007. The reversal of 202012004 is 400210202.

It is an interprime number because it is at equal distance from previous prime (202012001) and next prime (202012007).

It can be written as a sum of positive squares in only one way, i.e., 122766400 + 79245604 = 11080^2 + 8902^2 .

It is not an unprimeable number, because it can be changed into a prime (202012001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25251497 + ... + 25251504.

It is an arithmetic number, because the mean of its divisors is an integer number (58920169).

Almost surely, 2^202012004 is an apocalyptic number.

It is an amenable number.

202012004 is a deficient number, since it is larger than the sum of its proper divisors (151509010).

202012004 is a wasteful number, since it uses less digits than its factorization.

202012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50503005 (or 50503003 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 202012004 is about 14213.0926965246. The cubic root of 202012004 is about 586.7580532282.

Adding to 202012004 its reverse (400210202), we get a palindrome (602222206).

The spelling of 202012004 in words is "two hundred two million, twelve thousand, four".