1648451000 has 64 divisors (see below), whose sum is σ = 4408447680. Its totient is φ = 565180800.

The previous prime is 1648450981. The next prime is 1648451059. The reversal of 1648451000 is 1548461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110747 + ... + 124746.

It is an arithmetic number, because the mean of its divisors is an integer number (68881995).

Almost surely, 2^1648451000 is an apocalyptic number.

1648451000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1648451000 is an abundant number, since it is smaller than the sum of its proper divisors (2759996680).

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

1648451000 is a wasteful number, since it uses less digits than its factorization.

1648451000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235521 (or 235507 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1648451000 is about 40601.1206741883. The cubic root of 1648451000 is about 1181.2958568650.

Adding to 1648451000 its reverse (1548461), we get a palindrome (1649999461).

The spelling of 1648451000 in words is "one billion, six hundred forty-eight million, four hundred fifty-one thousand".