30400230 has 32 divisors (see below), whose sum is σ = 83384064. Its totient is φ = 6948576.

The previous prime is 30400219. The next prime is 30400231. The reversal of 30400230 is 3200403.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72172 + ... + 72591.

It is an arithmetic number, because the mean of its divisors is an integer number (2605752).

Almost surely, 2^30400230 is an apocalyptic number.

30400230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30400230 is an abundant number, since it is smaller than the sum of its proper divisors (52983834).

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

30400230 is a wasteful number, since it uses less digits than its factorization.

30400230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144780.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30400230 is about 5513.6403582388. The cubic root of 30400230 is about 312.0989372292.

Adding to 30400230 its reverse (3200403), we get a palindrome (33600633).

The spelling of 30400230 in words is "thirty million, four hundred thousand, two hundred thirty".