30503232 has 42 divisors (see below), whose sum is σ = 87433658. Its totient is φ = 10167552.

The previous prime is 30503197. The next prime is 30503251. The reversal of 30503232 is 23230503.

It can be written as a sum of positive squares in only one way, i.e., 16842816 + 13660416 = 4104^2 + 3696^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25903 + ... + 27054.

Almost surely, 2^30503232 is an apocalyptic number.

30503232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30503232 is an abundant number, since it is smaller than the sum of its proper divisors (56930426).

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

30503232 is a wasteful number, since it uses less digits than its factorization.

30503232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52975 (or 52962 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 30503232 is about 5522.9731123734. The cubic root of 30503232 is about 312.4510242181.

Adding to 30503232 its reverse (23230503), we get a palindrome (53733735).

The spelling of 30503232 in words is "thirty million, five hundred three thousand, two hundred thirty-two".