2021631074 has 16 divisors (see below), whose sum is σ = 3044445696. Its totient is φ = 1006824000.

The previous prime is 2021631071. The next prime is 2021631077. The reversal of 2021631074 is 4701361202.

It is an interprime number because it is at equal distance from previous prime (2021631071) and next prime (2021631077).

It is not an unprimeable number, because it can be changed into a prime (2021631071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 729239 + ... + 732005.

It is an arithmetic number, because the mean of its divisors is an integer number (190277856).

Almost surely, 2^2021631074 is an apocalyptic number.

2021631074 is a deficient number, since it is larger than the sum of its proper divisors (1022814622).

2021631074 is a wasteful number, since it uses less digits than its factorization.

2021631074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2021631074 is about 44962.5519071149. The cubic root of 2021631074 is about 1264.4470129051.

Adding to 2021631074 its reverse (4701361202), we get a palindrome (6722992276).

The spelling of 2021631074 in words is "two billion, twenty-one million, six hundred thirty-one thousand, seventy-four".