1628503243 has 16 divisors (see below), whose sum is σ = 1739162880. Its totient is φ = 1520433504.

The previous prime is 1628503241. The next prime is 1628503249. The reversal of 1628503243 is 3423058261.

It is not a de Polignac number, because 1628503243 - 2¹ = 1628503241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1628503199 and 1628503208.

It is not an unprimeable number, because it can be changed into a prime (1628503241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792205 + ... + 794257.

It is an arithmetic number, because the mean of its divisors is an integer number (108697680).

Almost surely, 2^1628503243 is an apocalyptic number.

1628503243 is a deficient number, since it is larger than the sum of its proper divisors (110659637).

1628503243 is a wasteful number, since it uses less digits than its factorization.

1628503243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1628503243 is about 40354.7177291578. The cubic root of 1628503243 is about 1176.5115884172.

The spelling of 1628503243 in words is "one billion, six hundred twenty-eight million, five hundred three thousand, two hundred forty-three".