1928633630 has 48 divisors (see below), whose sum is σ = 4405455216. Its totient is φ = 601130880.

The previous prime is 1928633617. The next prime is 1928633633. The reversal of 1928633630 is 363368291.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928633633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173519 + ... + 184298.

It is an arithmetic number, because the mean of its divisors is an integer number (91780317).

Almost surely, 2^1928633630 is an apocalyptic number.

1928633630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1928633630 is an abundant number, since it is smaller than the sum of its proper divisors (2476821586).

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

1928633630 is a wasteful number, since it uses less digits than its factorization.

1928633630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357849 (or 357842 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 1928633630 is about 43916.2114713917. The cubic root of 1928633630 is about 1244.7531819341.

The spelling of 1928633630 in words is "one billion, nine hundred twenty-eight million, six hundred thirty-three thousand, six hundred thirty".