3221141240 has 32 divisors (see below), whose sum is σ = 7401775680. Its totient is φ = 1261041792.

The previous prime is 3221141213. The next prime is 3221141267. The reversal of 3221141240 is 421411223.

It is an interprime number because it is at equal distance from previous prime (3221141213) and next prime (3221141267).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 854807 + ... + 858566.

It is an arithmetic number, because the mean of its divisors is an integer number (231305490).

Almost surely, 2^3221141240 is an apocalyptic number.

It is an amenable number.

3221141240 is an abundant number, since it is smaller than the sum of its proper divisors (4180634440).

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

3221141240 is a wasteful number, since it uses less digits than its factorization.

3221141240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713431 (or 1713427 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3221141240 is about 56755.0988017817. The cubic root of 3221141240 is about 1476.8506870207.

Adding to 3221141240 its reverse (421411223), we get a palindrome (3642552463).

The spelling of 3221141240 in words is "three billion, two hundred twenty-one million, one hundred forty-one thousand, two hundred forty".