12507430 has 16 divisors (see below), whose sum is σ = 24245424. Its totient is φ = 4618080.

The previous prime is 12507421. The next prime is 12507433. The reversal of 12507430 is 3470521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507433) 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, 47976 + ... + 48235.

It is an arithmetic number, because the mean of its divisors is an integer number (1515339).

Almost surely, 2^12507430 is an apocalyptic number.

12507430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12507430 is a deficient number, since it is larger than the sum of its proper divisors (11737994).

12507430 is a wasteful number, since it uses less digits than its factorization.

12507430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96231.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12507430 is about 3536.5845105129. The cubic root of 12507430 is about 232.1254152463.

Adding to 12507430 its reverse (3470521), we get a palindrome (15977951).

The spelling of 12507430 in words is "twelve million, five hundred seven thousand, four hundred thirty".