12495858 has 16 divisors (see below), whose sum is σ = 25344576. Its totient is φ = 4106480.

The previous prime is 12495853. The next prime is 12495893. The reversal of 12495858 is 85859421.

It is a happy number.

It is a super-2 number, since 2×12495858² = 312292934312328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12495851) 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, 14241 + ... + 15092.

It is an arithmetic number, because the mean of its divisors is an integer number (1584036).

Almost surely, 2^12495858 is an apocalyptic number.

12495858 is an abundant number, since it is smaller than the sum of its proper divisors (12848718).

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

12495858 is a wasteful number, since it uses less digits than its factorization.

12495858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29409.

The product of its digits is 115200, while the sum is 42.

The square root of 12495858 is about 3534.9480901422. The cubic root of 12495858 is about 232.0538049008.

The spelling of 12495858 in words is "twelve million, four hundred ninety-five thousand, eight hundred fifty-eight".