2342728440 has 128 divisors (see below), whose sum is σ = 8409844800. Its totient is φ = 576668160.

The previous prime is 2342728417. The next prime is 2342728441. The reversal of 2342728440 is 448272432.

2342728440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2342728395 and 2342728404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2342728441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69391 + ... + 97470.

Almost surely, 2^2342728440 is an apocalyptic number.

2342728440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2342728440 is an abundant number, since it is smaller than the sum of its proper divisors (6067116360).

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

2342728440 is a wasteful number, since it uses less digits than its factorization.

2342728440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166894 (or 166884 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 2342728440 is about 48401.7400513659. The cubic root of 2342728440 is about 1328.1301933010.

The spelling of 2342728440 in words is "two billion, three hundred forty-two million, seven hundred twenty-eight thousand, four hundred forty".