12902420 has 24 divisors (see below), whose sum is σ = 27264384. Its totient is φ = 5128736.

The previous prime is 12902401. The next prime is 12902423. The reversal of 12902420 is 2420921.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12902392 and 12902401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12902423) 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, 1409 + ... + 5271.

It is an arithmetic number, because the mean of its divisors is an integer number (1136016).

Almost surely, 2^12902420 is an apocalyptic number.

12902420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12902420 is an abundant number, since it is smaller than the sum of its proper divisors (14361964).

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

12902420 is a wasteful number, since it uses less digits than its factorization.

12902420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12902420 is about 3591.9938752732. The cubic root of 12902420 is about 234.5436746090.

The spelling of 12902420 in words is "twelve million, nine hundred two thousand, four hundred twenty".