30550432 has 48 divisors (see below), whose sum is σ = 66074400. Its totient is φ = 13789440.

The previous prime is 30550397. The next prime is 30550433. The reversal of 30550432 is 23405503.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (30550433) 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, 80419 + ... + 80797.

It is an arithmetic number, because the mean of its divisors is an integer number (1376550).

Almost surely, 2^30550432 is an apocalyptic number.

30550432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30550432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33037200).

30550432 is an abundant number, since it is smaller than the sum of its proper divisors (35523968).

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

30550432 is a wasteful number, since it uses less digits than its factorization.

30550432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 30550432 is about 5527.2445214591. The cubic root of 30550432 is about 312.6121010086.

Adding to 30550432 its reverse (23405503), we get a palindrome (53955935).

Subtracting from 30550432 its reverse (23405503), we obtain a square (7144929 = 2673²).

The spelling of 30550432 in words is "thirty million, five hundred fifty thousand, four hundred thirty-two".