2421342342 has 64 divisors (see below), whose sum is σ = 5646251520. Its totient is φ = 767685600.

The previous prime is 2421342307. The next prime is 2421342361. The reversal of 2421342342 is 2432431242.

2421342342 is a `hidden beast` number, since 2 + 421 + 3 + 4 + 234 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219417 + ... + 230187.

It is an arithmetic number, because the mean of its divisors is an integer number (88222680).

Almost surely, 2^2421342342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2421342342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2823125760).

2421342342 is an abundant number, since it is smaller than the sum of its proper divisors (3224909178).

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

2421342342 is a wasteful number, since it uses less digits than its factorization.

2421342342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10986 (or 10980 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 2421342342 is about 49207.1371042860. The cubic root of 2421342342 is about 1342.8228791760.

Adding to 2421342342 its reverse (2432431242), we get a palindrome (4853773584).

Subtracting 2421342342 from its reverse (2432431242), we obtain a square (11088900 = 3330²).

The spelling of 2421342342 in words is "two billion, four hundred twenty-one million, three hundred forty-two thousand, three hundred forty-two".