30023480 has 32 divisors (see below), whose sum is σ = 69204240. Its totient is φ = 11715840.

The previous prime is 30023473. The next prime is 30023489. The reversal of 30023480 is 8432003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023489) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7514 + ... + 10793.

Almost surely, 2^30023480 is an apocalyptic number.

It is an amenable number.

30023480 is an abundant number, since it is smaller than the sum of its proper divisors (39180760).

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

30023480 is a wasteful number, since it uses less digits than its factorization.

30023480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18359 (or 18355 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30023480 is about 5479.3685767614. The cubic root of 30023480 is about 310.8042936994.

Adding to 30023480 its reverse (8432003), we get a palindrome (38455483).

It can be divided in two parts, 30023 and 480, that added together give a palindrome (30503).

The spelling of 30023480 in words is "thirty million, twenty-three thousand, four hundred eighty".