12491470 has 16 divisors (see below), whose sum is σ = 23033808. Its totient is φ = 4874560.

The previous prime is 12491449. The next prime is 12491477. The reversal of 12491470 is 7419421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12491477) 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, 14824 + ... + 15643.

It is an arithmetic number, because the mean of its divisors is an integer number (1439613).

Almost surely, 2^12491470 is an apocalyptic number.

12491470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12491470 is a deficient number, since it is larger than the sum of its proper divisors (10542338).

12491470 is a wasteful number, since it uses less digits than its factorization.

12491470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30515.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12491470 is about 3534.3273758949. The cubic root of 12491470 is about 232.0266393310.

The spelling of 12491470 in words is "twelve million, four hundred ninety-one thousand, four hundred seventy".