30490832 has 20 divisors (see below), whose sum is σ = 61114020. Its totient is φ = 14719488.

The previous prime is 30490819. The next prime is 30490841. The reversal of 30490832 is 23809403.

It can be written as a sum of positive squares in 2 ways, for example, as 21752896 + 8737936 = 4664^2 + 2956^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 30490795 and 30490804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32393 + ... + 33320.

It is an arithmetic number, because the mean of its divisors is an integer number (3055701).

Almost surely, 2^30490832 is an apocalyptic number.

It is an amenable number.

30490832 is an abundant number, since it is smaller than the sum of its proper divisors (30623188).

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

30490832 is a wasteful number, since it uses less digits than its factorization.

30490832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65750 (or 65744 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30490832 is about 5521.8504144897. The cubic root of 30490832 is about 312.4086798766.

The spelling of 30490832 in words is "thirty million, four hundred ninety thousand, eight hundred thirty-two".