1623328276 has 12 divisors (see below), whose sum is σ = 2875051872. Its totient is φ = 801884888.

The previous prime is 1623328241. The next prime is 1623328297. The reversal of 1623328276 is 6728233261.

It is a super-3 number, since 3×1623328276³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2444440 + ... + 2445103.

It is an arithmetic number, because the mean of its divisors is an integer number (239587656).

Almost surely, 2^1623328276 is an apocalyptic number.

It is an amenable number.

1623328276 is a deficient number, since it is larger than the sum of its proper divisors (1251723596).

1623328276 is a wasteful number, since it uses less digits than its factorization.

1623328276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889630 (or 4889628 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 1623328276 is about 40290.5482216363. The cubic root of 1623328276 is about 1175.2640483388.

The spelling of 1623328276 in words is "one billion, six hundred twenty-three million, three hundred twenty-eight thousand, two hundred seventy-six".