30628798 has 24 divisors (see below), whose sum is σ = 51391800. Its totient is φ = 13650048.

The previous prime is 30628769. The next prime is 30628811. The reversal of 30628798 is 89782603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9588 + ... + 12376.

It is an arithmetic number, because the mean of its divisors is an integer number (2141325).

Almost surely, 2^30628798 is an apocalyptic number.

30628798 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30628798 is a deficient number, since it is larger than the sum of its proper divisors (20763002).

30628798 is a wasteful number, since it uses less digits than its factorization.

30628798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 30628798 is about 5534.3290469577. The cubic root of 30628798 is about 312.8791702563.

It can be divided in two parts, 306 and 28798, that multiplied together give a palindrome (8812188).

The spelling of 30628798 in words is "thirty million, six hundred twenty-eight thousand, seven hundred ninety-eight".