3861490 has 8 divisors (see below), whose sum is σ = 6950700. Its totient is φ = 1544592.

The previous prime is 3861463. The next prime is 3861521. The reversal of 3861490 is 941683.

It can be written as a sum of positive squares in 2 ways, for example, as 3682561 + 178929 = 1919^2 + 423^2 .

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

It is a super-2 number, since 2×3861490² = 29822210040200, which contains 22 as substring.

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, 193065 + ... + 193084.

Almost surely, 2^3861490 is an apocalyptic number.

3861490 is a deficient number, since it is larger than the sum of its proper divisors (3089210).

3861490 is a wasteful number, since it uses less digits than its factorization.

3861490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386156.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3861490 is about 1965.0674288685. The cubic root of 3861490 is about 156.8862822105.

The spelling of 3861490 in words is "three million, eight hundred sixty-one thousand, four hundred ninety".