2001420340 has 12 divisors (see below), whose sum is σ = 4202982756. Its totient is φ = 800568128.

The previous prime is 2001420241. The next prime is 2001420373. The reversal of 2001420340 is 430241002.

It can be written as a sum of positive squares in 2 ways, for example, as 221592996 + 1779827344 = 14886^2 + 42188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50035489 + ... + 50035528.

It is an arithmetic number, because the mean of its divisors is an integer number (350248563).

Almost surely, 2^2001420340 is an apocalyptic number.

2001420340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001420340 is an abundant number, since it is smaller than the sum of its proper divisors (2201562416).

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

2001420340 is a wasteful number, since it uses less digits than its factorization.

2001420340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100071026 (or 100071024 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2001420340 is about 44737.2366155980. The cubic root of 2001420340 is about 1260.2192320300.

Adding to 2001420340 its reverse (430241002), we get a palindrome (2431661342).

The spelling of 2001420340 in words is "two billion, one million, four hundred twenty thousand, three hundred forty".