13146420 has 96 divisors (see below), whose sum is σ = 42594048. Its totient is φ = 2967552.

The previous prime is 13146379. The next prime is 13146421. The reversal of 13146420 is 2464131.

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 (13146421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47322 + ... + 47598.

It is an arithmetic number, because the mean of its divisors is an integer number (443688).

Almost surely, 2^13146420 is an apocalyptic number.

13146420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13146420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21297024).

13146420 is an abundant number, since it is smaller than the sum of its proper divisors (29447628).

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

13146420 is a wasteful number, since it uses less digits than its factorization.

13146420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13146420 is about 3625.7992222405. The cubic root of 13146420 is about 236.0129505485.

The spelling of 13146420 in words is "thirteen million, one hundred forty-six thousand, four hundred twenty".