1016622321 has 32 divisors (see below), whose sum is σ = 1686158208. Its totient is φ = 535280640.

The previous prime is 1016622293. The next prime is 1016622329. The reversal of 1016622321 is 1232266101.

It is not a de Polignac number, because 1016622321 - 2⁷ = 1016622193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1016622291 and 1016622300.

It is not an unprimeable number, because it can be changed into a prime (1016622329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62406 + ... + 76991.

It is an arithmetic number, because the mean of its divisors is an integer number (52692444).

Almost surely, 2^1016622321 is an apocalyptic number.

1016622321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1016622321 is a deficient number, since it is larger than the sum of its proper divisors (669535887).

1016622321 is a wasteful number, since it uses less digits than its factorization.

1016622321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139441.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1016622321 is about 31884.5153797263. The cubic root of 1016622321 is about 1005.5103538945.

Adding to 1016622321 its reverse (1232266101), we get a palindrome (2248888422).

The spelling of 1016622321 in words is "one billion, sixteen million, six hundred twenty-two thousand, three hundred twenty-one".