1628631248 has 10 divisors (see below), whose sum is σ = 3155473074. Its totient is φ = 814315616.

The previous prime is 1628631247. The next prime is 1628631259. The reversal of 1628631248 is 8421368261.

It can be written as a sum of positive squares in only one way, i.e., 1542289984 + 86341264 = 39272^2 + 9292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628631247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50894711 + ... + 50894742.

Almost surely, 2^1628631248 is an apocalyptic number.

It is an amenable number.

1628631248 is a deficient number, since it is larger than the sum of its proper divisors (1526841826).

1628631248 is a wasteful number, since it uses less digits than its factorization.

1628631248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101789461 (or 101789455 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 1628631248 is about 40356.3036959531. The cubic root of 1628631248 is about 1176.5424133318.

The spelling of 1628631248 in words is "one billion, six hundred twenty-eight million, six hundred thirty-one thousand, two hundred forty-eight".