3881630 has 8 divisors (see below), whose sum is σ = 6986952. Its totient is φ = 1552648.

The previous prime is 3881611. The next prime is 3881659. The reversal of 3881630 is 361883.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3881593 and 3881602.

It is a congruent number.

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, 194072 + ... + 194091.

It is an arithmetic number, because the mean of its divisors is an integer number (873369).

Almost surely, 2^3881630 is an apocalyptic number.

3881630 is a deficient number, since it is larger than the sum of its proper divisors (3105322).

3881630 is a wasteful number, since it uses less digits than its factorization.

3881630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388170.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3881630 is about 1970.1852704759. The cubic root of 3881630 is about 157.1585615946.

The spelling of 3881630 in words is "three million, eight hundred eighty-one thousand, six hundred thirty".