30966428 has 24 divisors (see below), whose sum is σ = 57235920. Its totient is φ = 14618880.

The previous prime is 30966389. The next prime is 30966433. The reversal of 30966428 is 82466903.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 30966391 and 30966400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32438 + ... + 33378.

It is an arithmetic number, because the mean of its divisors is an integer number (2384830).

Almost surely, 2^30966428 is an apocalyptic number.

30966428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30966428 is a deficient number, since it is larger than the sum of its proper divisors (26269492).

30966428 is a wasteful number, since it uses less digits than its factorization.

30966428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 30966428 is about 5564.7486915403. The cubic root of 30966428 is about 314.0246238144.

The spelling of 30966428 in words is "thirty million, nine hundred sixty-six thousand, four hundred twenty-eight".