30214920 has 32 divisors (see below), whose sum is σ = 90645120. Its totient is φ = 8057280.

The previous prime is 30214913. The next prime is 30214927. The reversal of 30214920 is 2941203.

It is an interprime number because it is at equal distance from previous prime (30214913) and next prime (30214927).

It is not an unprimeable number, because it can be changed into a prime (30214927) 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, 125776 + ... + 126015.

It is an arithmetic number, because the mean of its divisors is an integer number (2832660).

Almost surely, 2^30214920 is an apocalyptic number.

30214920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30214920 is an abundant number, since it is smaller than the sum of its proper divisors (60430200).

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

30214920 is a wasteful number, since it uses less digits than its factorization.

30214920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251805 (or 251801 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30214920 is about 5496.8099839816. The cubic root of 30214920 is about 311.4634928235.

The spelling of 30214920 in words is "thirty million, two hundred fourteen thousand, nine hundred twenty".