1628682140 has 12 divisors (see below), whose sum is σ = 3420232536. Its totient is φ = 651472848.

The previous prime is 1628682119. The next prime is 1628682149. The reversal of 1628682140 is 412868261.

It is a happy number.

1628682140 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1628682094 and 1628682103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628682149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40717034 + ... + 40717073.

It is an arithmetic number, because the mean of its divisors is an integer number (285019378).

Almost surely, 2^1628682140 is an apocalyptic number.

1628682140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1628682140 is an abundant number, since it is smaller than the sum of its proper divisors (1791550396).

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

1628682140 is a wasteful number, since it uses less digits than its factorization.

1628682140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81434116 (or 81434114 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1628682140 is about 40356.9342244923. The cubic root of 1628682140 is about 1176.5546681977.

The spelling of 1628682140 in words is "one billion, six hundred twenty-eight million, six hundred eighty-two thousand, one hundred forty".