3988646146 has 8 divisors (see below), whose sum is σ = 6042206844. Its totient is φ = 1974577200.

The previous prime is 3988646107. The next prime is 3988646153. The reversal of 3988646146 is 6416468893.

It can be written as a sum of positive squares in 2 ways, for example, as 2931681025 + 1056965121 = 54145^2 + 32511^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9872685 + ... + 9873088.

Almost surely, 2^3988646146 is an apocalyptic number.

3988646146 is a deficient number, since it is larger than the sum of its proper divisors (2053560698).

3988646146 is a wasteful number, since it uses less digits than its factorization.

3988646146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19745876.

The product of its digits is 5971968, while the sum is 55.

The square root of 3988646146 is about 63155.7293204662. The cubic root of 3988646146 is about 1585.8977020198.

The spelling of 3988646146 in words is "three billion, nine hundred eighty-eight million, six hundred forty-six thousand, one hundred forty-six".