3861829450 has 12 divisors (see below), whose sum is σ = 7183002870. Its totient is φ = 1544731760.

The previous prime is 3861829427. The next prime is 3861829451. The reversal of 3861829450 is 549281683.

It can be written as a sum of positive squares in 3 ways, for example, as 1452295881 + 2409533569 = 38109^2 + 49087^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3861829450.

It is not an unprimeable number, because it can be changed into a prime (3861829451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38618245 + ... + 38618344.

Almost surely, 2^3861829450 is an apocalyptic number.

3861829450 is a deficient number, since it is larger than the sum of its proper divisors (3321173420).

3861829450 is a wasteful number, since it uses less digits than its factorization.

3861829450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77236601 (or 77236596 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 3861829450 is about 62143.6195437633. The cubic root of 3861829450 is about 1568.9087918288.

The spelling of 3861829450 in words is "three billion, eight hundred sixty-one million, eight hundred twenty-nine thousand, four hundred fifty".