2021701340 has 12 divisors (see below), whose sum is σ = 4245572856. Its totient is φ = 808680528.

The previous prime is 2021701321. The next prime is 2021701351. The reversal of 2021701340 is 431071202.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 101085067 = 2021701340 / (2 + 0 + 2 + 1 + 7 + 0 + 1 + 3 + 4 + 0).

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, 50542514 + ... + 50542553.

It is an arithmetic number, because the mean of its divisors is an integer number (353797738).

Almost surely, 2^2021701340 is an apocalyptic number.

2021701340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021701340 is an abundant number, since it is smaller than the sum of its proper divisors (2223871516).

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

2021701340 is a wasteful number, since it uses less digits than its factorization.

2021701340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101085076 (or 101085074 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2021701340 is about 44963.3332839103. Note that the first 3 decimals coincide. The cubic root of 2021701340 is about 1264.4616622322.

Adding to 2021701340 its reverse (431071202), we get a palindrome (2452772542).

The spelling of 2021701340 in words is "two billion, twenty-one million, seven hundred one thousand, three hundred forty".