30501930 has 16 divisors (see below), whose sum is σ = 73204704. Its totient is φ = 8133840.

The previous prime is 30501901. The next prime is 30501931. The reversal of 30501930 is 3910503.

It is a junction number, because it is equal to n+sod(n) for n = 30501897 and 30501906.

It is not an unprimeable number, because it can be changed into a prime (30501931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508336 + ... + 508395.

It is an arithmetic number, because the mean of its divisors is an integer number (4575294).

Almost surely, 2^30501930 is an apocalyptic number.

30501930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30501930 is an abundant number, since it is smaller than the sum of its proper divisors (42702774).

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

30501930 is a wasteful number, since it uses less digits than its factorization.

30501930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016741.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 30501930 is about 5522.8552398193. The cubic root of 30501930 is about 312.4465786015.

The spelling of 30501930 in words is "thirty million, five hundred one thousand, nine hundred thirty".