30530370 has 32 divisors (see below), whose sum is σ = 78910272. Its totient is φ = 7515072.

The previous prime is 30530347. The next prime is 30530393. The reversal of 30530370 is 7303503.

It is an interprime number because it is at equal distance from previous prime (30530347) and next prime (30530393).

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 15 ways as a sum of consecutive naturals, for example, 38752 + ... + 39531.

It is an arithmetic number, because the mean of its divisors is an integer number (2465946).

Almost surely, 2^30530370 is an apocalyptic number.

30530370 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30530370 is an abundant number, since it is smaller than the sum of its proper divisors (48379902).

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

30530370 is a wasteful number, since it uses less digits than its factorization.

30530370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78306.

The product of its (nonzero) digits is 945, while the sum is 21.

The square root of 30530370 is about 5525.4293950787. The cubic root of 30530370 is about 312.5436568341.

Adding to 30530370 its reverse (7303503), we get a palindrome (37833873).

The spelling of 30530370 in words is "thirty million, five hundred thirty thousand, three hundred seventy".