12520494 has 80 divisors (see below), whose sum is σ = 32768736. Its totient is φ = 3499200.

The previous prime is 12520481. The next prime is 12520499. The reversal of 12520494 is 49402521.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520499) 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 39 ways as a sum of consecutive naturals, for example, 69084 + ... + 69264.

Almost surely, 2^12520494 is an apocalyptic number.

12520494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12520494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16384368).

12520494 is an abundant number, since it is smaller than the sum of its proper divisors (20248242).

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

12520494 is a wasteful number, since it uses less digits than its factorization.

12520494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12520494 is about 3538.4310082295. The cubic root of 12520494 is about 232.2062053907.

The spelling of 12520494 in words is "twelve million, five hundred twenty thousand, four hundred ninety-four".