1322389628 has 24 divisors (see below), whose sum is σ = 2651085024. Its totient is φ = 565387200.

The previous prime is 1322389609. The next prime is 1322389639. The reversal of 1322389628 is 8269832231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44303 + ... + 67878.

It is an arithmetic number, because the mean of its divisors is an integer number (110461876).

Almost surely, 2^1322389628 is an apocalyptic number.

It is an amenable number.

1322389628 is an abundant number, since it is smaller than the sum of its proper divisors (1328695396).

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

1322389628 is a wasteful number, since it uses less digits than its factorization.

1322389628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112613 (or 112611 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 1322389628 is about 36364.6755519694. The cubic root of 1322389628 is about 1097.6228633231.

The spelling of 1322389628 in words is "one billion, three hundred twenty-two million, three hundred eighty-nine thousand, six hundred twenty-eight".