12542620 has 12 divisors (see below), whose sum is σ = 26339544. Its totient is φ = 5017040.

The previous prime is 12542611. The next prime is 12542639. The reversal of 12542620 is 2624521.

It is a junction number, because it is equal to n+sod(n) for n = 12542591 and 12542600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313546 + ... + 313585.

It is an arithmetic number, because the mean of its divisors is an integer number (2194962).

Almost surely, 2^12542620 is an apocalyptic number.

12542620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12542620 is an abundant number, since it is smaller than the sum of its proper divisors (13796924).

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

12542620 is a wasteful number, since it uses less digits than its factorization.

12542620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627140 (or 627138 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 12542620 is about 3541.5561551386. The cubic root of 12542620 is about 232.3429084898.

The spelling of 12542620 in words is "twelve million, five hundred forty-two thousand, six hundred twenty".