2050621730 has 8 divisors (see below), whose sum is σ = 3691119132. Its totient is φ = 820248688.

The previous prime is 2050621693. The next prime is 2050621739. The reversal of 2050621730 is 371260502.

It can be written as a sum of positive squares in 2 ways, for example, as 2047653001 + 2968729 = 45251^2 + 1723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2050621730.

It is not an unprimeable number, because it can be changed into a prime (2050621739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102531077 + ... + 102531096.

Almost surely, 2^2050621730 is an apocalyptic number.

2050621730 is a deficient number, since it is larger than the sum of its proper divisors (1640497402).

2050621730 is a wasteful number, since it uses less digits than its factorization.

2050621730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205062180.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2050621730 is about 45283.7910294622. The cubic root of 2050621730 is about 1270.4625033390.

The spelling of 2050621730 in words is "two billion, fifty million, six hundred twenty-one thousand, seven hundred thirty".