3990248 has 8 divisors (see below), whose sum is σ = 7481730. Its totient is φ = 1995120.

The previous prime is 3990241. The next prime is 3990251. The reversal of 3990248 is 8420993.

It can be written as a sum of positive squares in only one way, i.e., 3247204 + 743044 = 1802^2 + 862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3990241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249383 + ... + 249398.

Almost surely, 2^3990248 is an apocalyptic number.

It is an amenable number.

3990248 is a deficient number, since it is larger than the sum of its proper divisors (3491482).

3990248 is a wasteful number, since it uses less digits than its factorization.

3990248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498787 (or 498783 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3990248 is about 1997.5605122248. The cubic root of 3990248 is about 158.6109974262.

The spelling of 3990248 in words is "three million, nine hundred ninety thousand, two hundred forty-eight".