12490023 has 16 divisors (see below), whose sum is σ = 20496896. Its totient is φ = 6588000.

The previous prime is 12490001. The next prime is 12490031. The reversal of 12490023 is 32009421.

It is not a de Polignac number, because 12490023 - 2⁵ = 12489991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22603 + ... + 23148.

It is an arithmetic number, because the mean of its divisors is an integer number (1281056).

Almost surely, 2^12490023 is an apocalyptic number.

12490023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12490023 is a deficient number, since it is larger than the sum of its proper divisors (8006873).

12490023 is a wasteful number, since it uses less digits than its factorization.

12490023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45774.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12490023 is about 3534.1226634060. The cubic root of 12490023 is about 232.0176797367.

Adding to 12490023 its reverse (32009421), we get a palindrome (44499444).

The spelling of 12490023 in words is "twelve million, four hundred ninety thousand, twenty-three".