3142420240 has 80 divisors (see below), whose sum is σ = 7535410560. Its totient is φ = 1218129920.

The previous prime is 3142420231. The next prime is 3142420243. The reversal of 3142420240 is 420242413.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (3142420243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330432 + ... + 339808.

It is an arithmetic number, because the mean of its divisors is an integer number (94192632).

Almost surely, 2^3142420240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3142420240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3767705280).

3142420240 is an abundant number, since it is smaller than the sum of its proper divisors (4392990320).

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

3142420240 is a wasteful number, since it uses less digits than its factorization.

3142420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520 (or 9514 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 3142420240 is about 56057.2942622100. The cubic root of 3142420240 is about 1464.7204815646.

Adding to 3142420240 its reverse (420242413), we get a palindrome (3562662653).

The spelling of 3142420240 in words is "three billion, one hundred forty-two million, four hundred twenty thousand, two hundred forty".