1630856430 has 80 divisors (see below), whose sum is σ = 5011665120. Its totient is φ = 372765888.

The previous prime is 1630856429. The next prime is 1630856473. The reversal of 1630856430 is 346580361.

1630856430 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 8 + 5 + 643 + 0 = 666.

1630856430 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 138145 + ... + 149484.

It is an arithmetic number, because the mean of its divisors is an integer number (62645814).

Almost surely, 2^1630856430 is an apocalyptic number.

1630856430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630856430 is an abundant number, since it is smaller than the sum of its proper divisors (3380808690).

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

1630856430 is a wasteful number, since it uses less digits than its factorization.

1630856430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287655 (or 287646 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1630856430 is about 40383.8634853081. The cubic root of 1630856430 is about 1177.0780020524.

The spelling of 1630856430 in words is "one billion, six hundred thirty million, eight hundred fifty-six thousand, four hundred thirty".