30480390 has 48 divisors (see below), whose sum is σ = 79606800. Its totient is φ = 8091456.

The previous prime is 30480383. The next prime is 30480391. The reversal of 30480390 is 9308403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30480391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23581 + ... + 24839.

It is an arithmetic number, because the mean of its divisors is an integer number (1658475).

Almost surely, 2^30480390 is an apocalyptic number.

30480390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30480390 is an abundant number, since it is smaller than the sum of its proper divisors (49126410).

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

30480390 is a wasteful number, since it uses less digits than its factorization.

30480390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30480390 is about 5520.9048171473. The cubic root of 30480390 is about 312.3730129380.

Adding to 30480390 its reverse (9308403), we get a palindrome (39788793).

The spelling of 30480390 in words is "thirty million, four hundred eighty thousand, three hundred ninety".