3219381 has 24 divisors (see below), whose sum is σ = 5241600. Its totient is φ = 1886400.

The previous prime is 3219371. The next prime is 3219389. The reversal of 3219381 is 1839123.

It is not a de Polignac number, because 3219381 - 2⁷ = 3219253 is a prime.

It is a super-2 number, since 2×3219381² = 20728828046322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3219389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2545 + ... + 3593.

It is an arithmetic number, because the mean of its divisors is an integer number (218400).

Almost surely, 2^3219381 is an apocalyptic number.

3219381 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3219381 is a deficient number, since it is larger than the sum of its proper divisors (2022219).

3219381 is a wasteful number, since it uses less digits than its factorization.

3219381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1094 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 3219381 is about 1794.2633585959. The cubic root of 3219381 is about 147.6581622411.

It can be divided in two parts, 3219 and 381, that added together give a square (3600 = 60²).

The spelling of 3219381 in words is "three million, two hundred nineteen thousand, three hundred eighty-one".