30478260 has 24 divisors (see below), whose sum is σ = 85339296. Its totient is φ = 8127520.

The previous prime is 30478219. The next prime is 30478277. The reversal of 30478260 is 6287403.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253926 + ... + 254045.

It is an arithmetic number, because the mean of its divisors is an integer number (3555804).

Almost surely, 2^30478260 is an apocalyptic number.

30478260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30478260 is an abundant number, since it is smaller than the sum of its proper divisors (54861036).

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

30478260 is a wasteful number, since it uses less digits than its factorization.

30478260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507983 (or 507981 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 30478260 is about 5520.7119106144. The cubic root of 30478260 is about 312.3657364562.

The spelling of 30478260 in words is "thirty million, four hundred seventy-eight thousand, two hundred sixty".