12491004 has 24 divisors (see below), whose sum is σ = 29248128. Its totient is φ = 4149040.

The previous prime is 12490997. The next prime is 12491009. The reversal of 12491004 is 40019421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12491009) 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, 2059 + ... + 5405.

It is an arithmetic number, because the mean of its divisors is an integer number (1218672).

Almost surely, 2^12491004 is an apocalyptic number.

It is an amenable number.

12491004 is an abundant number, since it is smaller than the sum of its proper divisors (16757124).

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

12491004 is a wasteful number, since it uses less digits than its factorization.

12491004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665 (or 3663 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12491004 is about 3534.2614504306. The cubic root of 12491004 is about 232.0237540085.

The spelling of 12491004 in words is "twelve million, four hundred ninety-one thousand, four".