30430428 has 48 divisors (see below), whose sum is σ = 83349504. Its totient is φ = 8458560.

The previous prime is 30430409. The next prime is 30430429. The reversal of 30430428 is 82403403.

It is a junction number, because it is equal to n+sod(n) for n = 30430398 and 30430407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30430429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1788 + ... + 8003.

It is an arithmetic number, because the mean of its divisors is an integer number (1736448).

Almost surely, 2^30430428 is an apocalyptic number.

It is an amenable number.

30430428 is an abundant number, since it is smaller than the sum of its proper divisors (52919076).

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

30430428 is a wasteful number, since it uses less digits than its factorization.

30430428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9842 (or 9840 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 30430428 is about 5516.3781596261. The cubic root of 30430428 is about 312.2022439557.

The spelling of 30430428 in words is "thirty million, four hundred thirty thousand, four hundred twenty-eight".