3825666402 has 32 divisors (see below), whose sum is σ = 7714699200. Its totient is φ = 1264699968.

The previous prime is 3825666391. The next prime is 3825666407. The reversal of 3825666402 is 2046665283.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3825666407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413208 + ... + 422364.

It is an arithmetic number, because the mean of its divisors is an integer number (241084350).

Almost surely, 2^3825666402 is an apocalyptic number.

3825666402 is an abundant number, since it is smaller than the sum of its proper divisors (3889032798).

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

3825666402 is a wasteful number, since it uses less digits than its factorization.

3825666402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9730.

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 3825666402 is about 61851.9716904805. The cubic root of 3825666402 is about 1563.9962195451.

The spelling of 3825666402 in words is "three billion, eight hundred twenty-five million, six hundred sixty-six thousand, four hundred two".