4013020402 has 8 divisors (see below), whose sum is σ = 6020894556. Its totient is φ = 2006055552.

The previous prime is 4013020397. The next prime is 4013020469. The reversal of 4013020402 is 2040203104.

It can be written as a sum of positive squares in 2 ways, for example, as 3396441841 + 616578561 = 58279^2 + 24831^2 .

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

It is a super-2 number, since 2×4013020402² = 32208665493736483208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216183 + ... + 234010.

Almost surely, 2^4013020402 is an apocalyptic number.

4013020402 is a deficient number, since it is larger than the sum of its proper divisors (2007874154).

4013020402 is a wasteful number, since it uses less digits than its factorization.

4013020402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454652.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4013020402 is about 63348.4048891525. The cubic root of 4013020402 is about 1589.1215698162.

Adding to 4013020402 its reverse (2040203104), we get a palindrome (6053223506).

The spelling of 4013020402 in words is "four billion, thirteen million, twenty thousand, four hundred two".