30232540 has 24 divisors (see below), whose sum is σ = 68372640. Its totient is φ = 11162688.

The previous prime is 30232519. The next prime is 30232549. The reversal of 30232540 is 4523203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30232549) 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, 57880 + ... + 58399.

It is an arithmetic number, because the mean of its divisors is an integer number (2848860).

Almost surely, 2^30232540 is an apocalyptic number.

It is an amenable number.

30232540 is an abundant number, since it is smaller than the sum of its proper divisors (38140100).

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

30232540 is a wasteful number, since it uses less digits than its factorization.

30232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116301 (or 116299 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30232540 is about 5498.4124981671. The cubic root of 30232540 is about 311.5240249525.

Adding to 30232540 its reverse (4523203), we get a palindrome (34755743).

The spelling of 30232540 in words is "thirty million, two hundred thirty-two thousand, five hundred forty".