3821142 has 16 divisors (see below), whose sum is σ = 8230320. Its totient is φ = 1175712.

The previous prime is 3821137. The next prime is 3821171. The reversal of 3821142 is 2411283.

It is a super-2 number, since 2×3821142² = 29202252368328, which contains 22 as substring.

It is a congruent number.

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, 24417 + ... + 24572.

It is an arithmetic number, because the mean of its divisors is an integer number (514395).

Almost surely, 2^3821142 is an apocalyptic number.

3821142 is an abundant number, since it is smaller than the sum of its proper divisors (4409178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3821142 is a wasteful number, since it uses less digits than its factorization.

3821142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49007.

The product of its digits is 384, while the sum is 21.

The square root of 3821142 is about 1954.7741557530. The cubic root of 3821142 is about 156.3379426004.

The spelling of 3821142 in words is "three million, eight hundred twenty-one thousand, one hundred forty-two".