30628296 has 24 divisors (see below), whose sum is σ = 82951830. Its totient is φ = 10209408.

The previous prime is 30628261. The next prime is 30628303. The reversal of 30628296 is 69282603.

30628296 is a `hidden beast` number, since 3 + 0 + 628 + 29 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16112196 + 14516100 = 4014^2 + 3810^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30628296.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 212625 + ... + 212768.

Almost surely, 2^30628296 is an apocalyptic number.

30628296 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30628296 is an abundant number, since it is smaller than the sum of its proper divisors (52323534).

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

30628296 is a wasteful number, since it uses less digits than its factorization.

30628296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425405 (or 425398 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 30628296 is about 5534.2836934874. The cubic root of 30628296 is about 312.8774609042.

The spelling of 30628296 in words is "thirty million, six hundred twenty-eight thousand, two hundred ninety-six".