2140021450 has 96 divisors (see below), whose sum is σ = 4776837120. Its totient is φ = 697809600.

The previous prime is 2140021427. The next prime is 2140021483. The reversal of 2140021450 is 541200412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 638479 + ... + 641821.

It is an arithmetic number, because the mean of its divisors is an integer number (49758720).

Almost surely, 2^2140021450 is an apocalyptic number.

2140021450 is an abundant number, since it is smaller than the sum of its proper divisors (2636815670).

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

2140021450 is a wasteful number, since it uses less digits than its factorization.

2140021450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452 (or 3447 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2140021450 is about 46260.3658653928. The cubic root of 2140021450 is about 1288.6630480931.

Adding to 2140021450 its reverse (541200412), we get a palindrome (2681221862).

The spelling of 2140021450 in words is "two billion, one hundred forty million, twenty-one thousand, four hundred fifty".