2342781738 has 256 divisors, whose sum is σ = 6299596800. Its totient is φ = 637632000.

The previous prime is 2342781731. The next prime is 2342781803. The reversal of 2342781738 is 8371872432.

It is a junction number, because it is equal to n+sod(n) for n = 2342781693 and 2342781702.

It is not an unprimeable number, because it can be changed into a prime (2342781731) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28226245 + ... + 28226327.

It is an arithmetic number, because the mean of its divisors is an integer number (24607800).

Almost surely, 2^2342781738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2342781738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3149798400).

2342781738 is an abundant number, since it is smaller than the sum of its proper divisors (3956815062).

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

2342781738 is a wasteful number, since it uses less digits than its factorization.

2342781738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 2342781738 is about 48402.2906276139. The cubic root of 2342781738 is about 1328.1402650540.

The spelling of 2342781738 in words is "two billion, three hundred forty-two million, seven hundred eighty-one thousand, seven hundred thirty-eight".