30421552 has 30 divisors (see below), whose sum is σ = 68566668. Its totient is φ = 13037472.

The previous prime is 30421543. The next prime is 30421553. The reversal of 30421552 is 25512403.

It is not an unprimeable number, because it can be changed into a prime (30421553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18618 + ... + 20185.

Almost surely, 2^30421552 is an apocalyptic number.

It is an amenable number.

30421552 is an abundant number, since it is smaller than the sum of its proper divisors (38145116).

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

30421552 is a wasteful number, since it uses less digits than its factorization.

30421552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38825 (or 38812 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 30421552 is about 5515.5735875791. The cubic root of 30421552 is about 312.1718864400.

Adding to 30421552 its reverse (25512403), we get a palindrome (55933955).

The spelling of 30421552 in words is "thirty million, four hundred twenty-one thousand, five hundred fifty-two".