13425780 has 48 divisors (see below), whose sum is σ = 39574080. Its totient is φ = 3391488.

The previous prime is 13425779. The next prime is 13425781. The reversal of 13425780 is 8752431.

It is an interprime number because it is at equal distance from previous prime (13425779) and next prime (13425781).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13425781) 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 15 ways as a sum of consecutive naturals, for example, 4749 + ... + 7028.

It is an arithmetic number, because the mean of its divisors is an integer number (824460).

Almost surely, 2^13425780 is an apocalyptic number.

13425780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13425780 is an abundant number, since it is smaller than the sum of its proper divisors (26148300).

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

13425780 is a wasteful number, since it uses less digits than its factorization.

13425780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11808 (or 11806 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 13425780 is about 3664.1206312020. The cubic root of 13425780 is about 237.6729967643.

The spelling of 13425780 in words is "thirteen million, four hundred twenty-five thousand, seven hundred eighty".