3124021340 has 24 divisors (see below), whose sum is σ = 7156849392. Its totient is φ = 1136007680.

The previous prime is 3124021331. The next prime is 3124021343. The reversal of 3124021340 is 431204213.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3124021343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7099829 + ... + 7100268.

It is an arithmetic number, because the mean of its divisors is an integer number (298202058).

Almost surely, 2^3124021340 is an apocalyptic number.

It is an amenable number.

3124021340 is an abundant number, since it is smaller than the sum of its proper divisors (4032828052).

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

3124021340 is a wasteful number, since it uses less digits than its factorization.

3124021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14200117 (or 14200115 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3124021340 is about 55892.9453509117. The cubic root of 3124021340 is about 1461.8562334810.

Adding to 3124021340 its reverse (431204213), we get a palindrome (3555225553).

The spelling of 3124021340 in words is "three billion, one hundred twenty-four million, twenty-one thousand, three hundred forty".