2021630364 has 72 divisors (see below), whose sum is σ = 5620480320. Its totient is φ = 608798592.

The previous prime is 2021630321. The next prime is 2021630371. The reversal of 2021630364 is 4630361202.

2021630364 is a `hidden beast` number, since 2 + 0 + 21 + 630 + 3 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23959 + ... + 67950.

Almost surely, 2^2021630364 is an apocalyptic number.

It is an amenable number.

2021630364 is an abundant number, since it is smaller than the sum of its proper divisors (3598849956).

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

2021630364 is a wasteful number, since it uses less digits than its factorization.

2021630364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91979 (or 91974 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 2021630364 is about 44962.5440116549. The cubic root of 2021630364 is about 1264.4468648798.

Adding to 2021630364 its reverse (4630361202), we get a palindrome (6651991566).

The spelling of 2021630364 in words is "two billion, twenty-one million, six hundred thirty thousand, three hundred sixty-four".