1628130732 has 24 divisors (see below), whose sum is σ = 4022441136. Its totient is φ = 510786048.

The previous prime is 1628130701. The next prime is 1628130743. The reversal of 1628130732 is 2370318261.

It is a junction number, because it is equal to n+sod(n) for n = 1628130693 and 1628130702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3990313 + ... + 3990720.

It is an arithmetic number, because the mean of its divisors is an integer number (167601714).

Almost surely, 2^1628130732 is an apocalyptic number.

1628130732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1628130732 is an abundant number, since it is smaller than the sum of its proper divisors (2394310404).

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

1628130732 is a wasteful number, since it uses less digits than its factorization.

1628130732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981057 (or 7981055 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1628130732 is about 40350.1020073060. The cubic root of 1628130732 is about 1176.4218747632.

Adding to 1628130732 its reverse (2370318261), we get a palindrome (3998448993).

The spelling of 1628130732 in words is "one billion, six hundred twenty-eight million, one hundred thirty thousand, seven hundred thirty-two".