30612428 has 24 divisors (see below), whose sum is σ = 66791424. Its totient is φ = 11926800.

The previous prime is 30612419. The next prime is 30612433. The reversal of 30612428 is 82421603.

It is a junction number, because it is equal to n+sod(n) for n = 30612397 and 30612406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49388 + ... + 50003.

It is an arithmetic number, because the mean of its divisors is an integer number (2782976).

Almost surely, 2^30612428 is an apocalyptic number.

It is an amenable number.

30612428 is an abundant number, since it is smaller than the sum of its proper divisors (36178996).

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

30612428 is a wasteful number, since it uses less digits than its factorization.

30612428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99413 (or 99411 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 30612428 is about 5532.8498985604. The cubic root of 30612428 is about 312.8234194042.

The spelling of 30612428 in words is "thirty million, six hundred twelve thousand, four hundred twenty-eight".