3820786402 has 4 divisors (see below), whose sum is σ = 5731179606. Its totient is φ = 1910393200.

The previous prime is 3820786379. The next prime is 3820786471. The reversal of 3820786402 is 2046870283.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3753890361 + 66896041 = 61269^2 + 8179^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955196599 + ... + 955196602.

Almost surely, 2^3820786402 is an apocalyptic number.

3820786402 is a deficient number, since it is larger than the sum of its proper divisors (1910393204).

3820786402 is a wasteful number, since it uses less digits than its factorization.

3820786402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910393203.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 3820786402 is about 61812.5100768445. The cubic root of 3820786402 is about 1563.3309281255.

It can be divided in two parts, 38207 and 86402, that added together give a square (124609 = 353²).

The spelling of 3820786402 in words is "three billion, eight hundred twenty million, seven hundred eighty-six thousand, four hundred two".