13700280 has 128 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 3256320.

The previous prime is 13700279. The next prime is 13700299. The reversal of 13700280 is 8200731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127987 + ... + 128093.

It is an arithmetic number, because the mean of its divisors is an integer number (357210).

Almost surely, 2^13700280 is an apocalyptic number.

13700280 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 13700280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22861440).

13700280 is an abundant number, since it is smaller than the sum of its proper divisors (32022600).

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

13700280 is a wasteful number, since it uses less digits than its factorization.

13700280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 13700280 is about 3701.3889284970. The cubic root of 13700280 is about 239.2818811933.

The spelling of 13700280 in words is "thirteen million, seven hundred thousand, two hundred eighty".