30628395 has 32 divisors (see below), whose sum is σ = 62231040. Its totient is φ = 14001120.

The previous prime is 30628393. The next prime is 30628421. The reversal of 30628395 is 59382603.

It is not a de Polignac number, because 30628395 - 2¹ = 30628393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30628393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15261 + ... + 17150.

It is an arithmetic number, because the mean of its divisors is an integer number (1944720).

Almost surely, 2^30628395 is an apocalyptic number.

30628395 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30628395 is an abundant number, since it is smaller than the sum of its proper divisors (31602645).

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

30628395 is a wasteful number, since it uses less digits than its factorization.

30628395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32432 (or 32426 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 30628395 is about 5534.2926377271. The cubic root of 30628395 is about 312.8777980090.

The spelling of 30628395 in words is "thirty million, six hundred twenty-eight thousand, three hundred ninety-five".