12958418 has 32 divisors (see below), whose sum is σ = 23112000. Its totient is φ = 5382720.

The previous prime is 12958411. The next prime is 12958427. The reversal of 12958418 is 81485921.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (12958411) 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 15 ways as a sum of consecutive naturals, for example, 11588 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (722250).

Almost surely, 2^12958418 is an apocalyptic number.

12958418 is a deficient number, since it is larger than the sum of its proper divisors (10153582).

12958418 is a wasteful number, since it uses less digits than its factorization.

12958418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its digits is 23040, while the sum is 38.

The square root of 12958418 is about 3599.7802710721. The cubic root of 12958418 is about 234.8825004877.

The spelling of 12958418 in words is "twelve million, nine hundred fifty-eight thousand, four hundred eighteen".