30500442 has 48 divisors (see below), whose sum is σ = 78851520. Its totient is φ = 8713656.

The previous prime is 30500441. The next prime is 30500443. The reversal of 30500442 is 24400503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30500441) and next prime (30500443).

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

It is not an unprimeable number, because it can be changed into a prime (30500441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3118 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (1642740).

Almost surely, 2^30500442 is an apocalyptic number.

30500442 is an abundant number, since it is smaller than the sum of its proper divisors (48351078).

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

30500442 is a wasteful number, since it uses less digits than its factorization.

30500442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11552 (or 11539 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30500442 is about 5522.7205252484. The cubic root of 30500442 is about 312.4414977420.

Adding to 30500442 its reverse (24400503), we get a palindrome (54900945).

The spelling of 30500442 in words is "thirty million, five hundred thousand, four hundred forty-two".