30453428 has 12 divisors (see below), whose sum is σ = 56098560. Its totient is φ = 14425272.

The previous prime is 30453421. The next prime is 30453433. The reversal of 30453428 is 82435403.

It is a super-2 number, since 2×30453428² = 1854822553902368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30453428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30453421) 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 3 ways as a sum of consecutive naturals, for example, 200276 + ... + 200427.

It is an arithmetic number, because the mean of its divisors is an integer number (4674880).

Almost surely, 2^30453428 is an apocalyptic number.

30453428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30453428 is a deficient number, since it is larger than the sum of its proper divisors (25645132).

30453428 is a wasteful number, since it uses less digits than its factorization.

30453428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400726 (or 400724 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 30453428 is about 5518.4624670283. The cubic root of 30453428 is about 312.2808806334.

The spelling of 30453428 in words is "thirty million, four hundred fifty-three thousand, four hundred twenty-eight".