30488445 has 72 divisors (see below), whose sum is σ = 60521760. Its totient is φ = 14152320.

The previous prime is 30488413. The next prime is 30488449. The reversal of 30488445 is 54488403.

It is not a de Polignac number, because 30488445 - 2⁵ = 30488413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30488449) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 144390 + ... + 144600.

It is an arithmetic number, because the mean of its divisors is an integer number (840580).

Almost surely, 2^30488445 is an apocalyptic number.

It is an amenable number.

30488445 is a deficient number, since it is larger than the sum of its proper divisors (30033315).

30488445 is a wasteful number, since it uses less digits than its factorization.

30488445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 30488445 is about 5521.6342689461. The cubic root of 30488445 is about 312.4005272733.

The spelling of 30488445 in words is "thirty million, four hundred eighty-eight thousand, four hundred forty-five".