3894986042 has 16 divisors (see below), whose sum is σ = 6196479912. Its totient is φ = 1829875200.

The previous prime is 3894986009. The next prime is 3894986071. The reversal of 3894986042 is 2406894983.

It can be written as a sum of positive squares in 4 ways, for example, as 3890141641 + 4844401 = 62371^2 + 2201^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74873 + ... + 115740.

Almost surely, 2^3894986042 is an apocalyptic number.

3894986042 is a deficient number, since it is larger than the sum of its proper divisors (2301493870).

3894986042 is a wasteful number, since it uses less digits than its factorization.

3894986042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191233.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The square root of 3894986042 is about 62409.8232812752. The cubic root of 3894986042 is about 1573.3860739027.

The spelling of 3894986042 in words is "three billion, eight hundred ninety-four million, nine hundred eighty-six thousand, forty-two".