30214128 has 40 divisors (see below), whose sum is σ = 89204608. Its totient is φ = 8632512.

The previous prime is 30214127. The next prime is 30214133. The reversal of 30214128 is 82141203.

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 (30214127) 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 7 ways as a sum of consecutive naturals, for example, 44626 + ... + 45297.

Almost surely, 2^30214128 is an apocalyptic number.

It is an amenable number.

30214128 is an abundant number, since it is smaller than the sum of its proper divisors (58990480).

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

30214128 is a wasteful number, since it uses less digits than its factorization.

30214128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89941 (or 89935 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 30214128 is about 5496.7379417251. The cubic root of 30214128 is about 311.4607714170.

The spelling of 30214128 in words is "thirty million, two hundred fourteen thousand, one hundred twenty-eight".