30326428 has 12 divisors (see below), whose sum is σ = 57895992. Its totient is φ = 13784720.

The previous prime is 30326389. The next prime is 30326447. The reversal of 30326428 is 82462303.

It is a junction number, because it is equal to n+sod(n) for n = 30326396 and 30326405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344575 + ... + 344662.

It is an arithmetic number, because the mean of its divisors is an integer number (4824666).

Almost surely, 2^30326428 is an apocalyptic number.

It is an amenable number.

30326428 is a deficient number, since it is larger than the sum of its proper divisors (27569564).

30326428 is a wasteful number, since it uses less digits than its factorization.

30326428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689252 (or 689250 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 30326428 is about 5506.9436169258. The cubic root of 30326428 is about 311.8461738973.

The spelling of 30326428 in words is "thirty million, three hundred twenty-six thousand, four hundred twenty-eight".