30478560 has 192 divisors, whose sum is σ = 112637952. Its totient is φ = 6782976.

The previous prime is 30478559. The next prime is 30478561. The reversal of 30478560 is 6587403.

It is an interprime number because it is at equal distance from previous prime (30478559) and next prime (30478561).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30478561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157824 + ... + 158016.

It is an arithmetic number, because the mean of its divisors is an integer number (586656).

Almost surely, 2^30478560 is an apocalyptic number.

30478560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30478560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56318976).

30478560 is an abundant number, since it is smaller than the sum of its proper divisors (82159392).

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

30478560 is a wasteful number, since it uses less digits than its factorization.

30478560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 30478560 is about 5520.7390809565. The cubic root of 30478560 is about 312.3667613333.

The spelling of 30478560 in words is "thirty million, four hundred seventy-eight thousand, five hundred sixty".