2001242340 has 36 divisors (see below), whose sum is σ = 6070435644. Its totient is φ = 533664576.

The previous prime is 2001242333. The next prime is 2001242357. The reversal of 2001242340 is 432421002.

2001242340 is a `hidden beast` number, since 200 + 1 + 2 + 423 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 970447104 + 1030795236 = 31152^2 + 32106^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5558827 + ... + 5559186.

Almost surely, 2^2001242340 is an apocalyptic number.

2001242340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001242340 is an abundant number, since it is smaller than the sum of its proper divisors (4069193304).

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

2001242340 is a wasteful number, since it uses less digits than its factorization.

2001242340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11118028 (or 11118023 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2001242340 is about 44735.2471771421. The cubic root of 2001242340 is about 1260.1818709504.

Adding to 2001242340 its reverse (432421002), we get a palindrome (2433663342).

The spelling of 2001242340 in words is "two billion, one million, two hundred forty-two thousand, three hundred forty".