30153808 has 20 divisors (see below), whose sum is σ = 59028340. Its totient is φ = 14920704.

The previous prime is 30153787. The next prime is 30153811. The reversal of 30153808 is 80835103.

It can be written as a sum of positive squares in 2 ways, for example, as 4631104 + 25522704 = 2152^2 + 5052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8163 + ... + 11266.

It is an arithmetic number, because the mean of its divisors is an integer number (2951417).

Almost surely, 2^30153808 is an apocalyptic number.

It is an amenable number.

30153808 is a deficient number, since it is larger than the sum of its proper divisors (28874532).

30153808 is a wasteful number, since it uses less digits than its factorization.

30153808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19534 (or 19528 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 30153808 is about 5491.2483098108. The cubic root of 30153808 is about 311.2533648018.

The spelling of 30153808 in words is "thirty million, one hundred fifty-three thousand, eight hundred eight".