1628880212 has 12 divisors (see below), whose sum is σ = 2850861300. Its totient is φ = 814348416.

The previous prime is 1628880191. The next prime is 1628880259. The reversal of 1628880212 is 2120888261.

It can be written as a sum of positive squares in 2 ways, for example, as 888278416 + 740601796 = 29804^2 + 27214^2 .

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, 31298 + ... + 65094.

It is an arithmetic number, because the mean of its divisors is an integer number (237571775).

Almost surely, 2^1628880212 is an apocalyptic number.

It is an amenable number.

1628880212 is a deficient number, since it is larger than the sum of its proper divisors (1221981088).

1628880212 is a wasteful number, since it uses less digits than its factorization.

1628880212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45850 (or 45848 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 1628880212 is about 40359.3881519529. The cubic root of 1628880212 is about 1176.6023617867.

The spelling of 1628880212 in words is "one billion, six hundred twenty-eight million, eight hundred eighty thousand, two hundred twelve".