30020541 has 8 divisors (see below), whose sum is σ = 40106304. Its totient is φ = 19974240.

The previous prime is 30020527. The next prime is 30020561. The reversal of 30020541 is 14502003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30020541 - 2⁵ = 30020509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30020541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8041 + ... + 11166.

It is an arithmetic number, because the mean of its divisors is an integer number (5013288).

Almost surely, 2^30020541 is an apocalyptic number.

It is an amenable number.

30020541 is a deficient number, since it is larger than the sum of its proper divisors (10085763).

30020541 is a wasteful number, since it uses less digits than its factorization.

30020541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19731.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30020541 is about 5479.1003823621. The cubic root of 30020541 is about 310.7941518191.

Adding to 30020541 its reverse (14502003), we get a palindrome (44522544).

The spelling of 30020541 in words is "thirty million, twenty thousand, five hundred forty-one".