12542480 has 20 divisors (see below), whose sum is σ = 29161452. Its totient is φ = 5016960.

The previous prime is 12542479. The next prime is 12542539. The reversal of 12542480 is 8424521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5740816 + 6801664 = 2396^2 + 2608^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78311 + ... + 78470.

Almost surely, 2^12542480 is an apocalyptic number.

12542480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12542480 is an abundant number, since it is smaller than the sum of its proper divisors (16618972).

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

12542480 is a wasteful number, since it uses less digits than its factorization.

12542480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156794 (or 156788 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 12542480 is about 3541.5363897608. The cubic root of 12542480 is about 232.3420440205.

The spelling of 12542480 in words is "twelve million, five hundred forty-two thousand, four hundred eighty".