30074520 has 64 divisors (see below), whose sum is σ = 103115520. Its totient is φ = 6873984.

The previous prime is 30074509. The next prime is 30074521. The reversal of 30074520 is 2547003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30074521) 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, 17062 + ... + 18741.

It is an arithmetic number, because the mean of its divisors is an integer number (1611180).

Almost surely, 2^30074520 is an apocalyptic number.

30074520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30074520 is an abundant number, since it is smaller than the sum of its proper divisors (73041000).

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

30074520 is a wasteful number, since it uses less digits than its factorization.

30074520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35824 (or 35820 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 30074520 is about 5484.0240699691. The cubic root of 30074520 is about 310.9803167135.

The spelling of 30074520 in words is "thirty million, seventy-four thousand, five hundred twenty".