30232040 has 32 divisors (see below), whose sum is σ = 71604000. Its totient is φ = 11456064.

The previous prime is 30232039. The next prime is 30232061. The reversal of 30232040 is 4023203.

30232040 = 770² + 771² + ... + 817².

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19130 + ... + 20649.

It is an arithmetic number, because the mean of its divisors is an integer number (2237625).

Almost surely, 2^30232040 is an apocalyptic number.

It is an amenable number.

30232040 is an abundant number, since it is smaller than the sum of its proper divisors (41371960).

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

30232040 is a wasteful number, since it uses less digits than its factorization.

30232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39809 (or 39805 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30232040 is about 5498.3670303100. The cubic root of 30232040 is about 311.5223075660.

Adding to 30232040 its reverse (4023203), we get a palindrome (34255243).

The spelling of 30232040 in words is "thirty million, two hundred thirty-two thousand, forty".