13709420 has 12 divisors (see below), whose sum is σ = 28789824. Its totient is φ = 5483760.

The previous prime is 13709419. The next prime is 13709491. The reversal of 13709420 is 2490731.

It is a self number, because there is not a number n which added to its sum of digits gives 13709420.

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, 342716 + ... + 342755.

It is an arithmetic number, because the mean of its divisors is an integer number (2399152).

Almost surely, 2^13709420 is an apocalyptic number.

13709420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13709420 is an abundant number, since it is smaller than the sum of its proper divisors (15080404).

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

13709420 is a wasteful number, since it uses less digits than its factorization.

13709420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685480 (or 685478 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13709420 is about 3702.6233942976. The cubic root of 13709420 is about 239.3350808413.

The spelling of 13709420 in words is "thirteen million, seven hundred nine thousand, four hundred twenty".