1648361020 has 12 divisors (see below), whose sum is σ = 3461558184. Its totient is φ = 659344400.

The previous prime is 1648360997. The next prime is 1648361051. The reversal of 1648361020 is 201638461.

It is a happy number.

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, 41209006 + ... + 41209045.

It is an arithmetic number, because the mean of its divisors is an integer number (288463182).

Almost surely, 2^1648361020 is an apocalyptic number.

1648361020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1648361020 is an abundant number, since it is smaller than the sum of its proper divisors (1813197164).

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

1648361020 is a wasteful number, since it uses less digits than its factorization.

1648361020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82418060 (or 82418058 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1648361020 is about 40600.0125615744. The cubic root of 1648361020 is about 1181.2743629625.

Adding to 1648361020 its reverse (201638461), we get a palindrome (1849999481).

The spelling of 1648361020 in words is "one billion, six hundred forty-eight million, three hundred sixty-one thousand, twenty".