30455070 has 32 divisors (see below), whose sum is σ = 75070368. Its totient is φ = 7901568.

The previous prime is 30455069. The next prime is 30455071. The reversal of 30455070 is 7055403.

It is an interprime number because it is at equal distance from previous prime (30455069) and next prime (30455071).

It is a super-2 number, since 2×30455070² = 1855022577409800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30455070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30455071) 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, 12609 + ... + 14828.

It is an arithmetic number, because the mean of its divisors is an integer number (2345949).

Almost surely, 2^30455070 is an apocalyptic number.

30455070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30455070 is an abundant number, since it is smaller than the sum of its proper divisors (44615298).

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

30455070 is a wasteful number, since it uses less digits than its factorization.

30455070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27484.

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

The square root of 30455070 is about 5518.6112383461. The cubic root of 30455070 is about 312.2864930939.

The spelling of 30455070 in words is "thirty million, four hundred fifty-five thousand, seventy".