30055470 has 32 divisors (see below), whose sum is σ = 74085408. Its totient is φ = 7797888.

The previous prime is 30055469. The next prime is 30055477. The reversal of 30055470 is 7455003.

It is a self number, because there is not a number n which added to its sum of digits gives 30055470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055477) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12429 + ... + 14648.

It is an arithmetic number, because the mean of its divisors is an integer number (2315169).

Almost surely, 2^30055470 is an apocalyptic number.

30055470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30055470 is an abundant number, since it is smaller than the sum of its proper divisors (44029938).

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

30055470 is a wasteful number, since it uses less digits than its factorization.

30055470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27124.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30055470 is about 5482.2869315642. The cubic root of 30055470 is about 310.9146417798.

The spelling of 30055470 in words is "thirty million, fifty-five thousand, four hundred seventy".