13869072 has 60 divisors (see below), whose sum is σ = 44362240. Its totient is φ = 3962304.

The previous prime is 13869007. The next prime is 13869073. The reversal of 13869072 is 27096831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13869073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5872 + ... + 7887.

Almost surely, 2^13869072 is an apocalyptic number.

13869072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13869072 is an abundant number, since it is smaller than the sum of its proper divisors (30493168).

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

13869072 is a wasteful number, since it uses less digits than its factorization.

13869072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13780 (or 13771 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13869072 is about 3724.1202988088. The cubic root of 13869072 is about 240.2605503706.

The spelling of 13869072 in words is "thirteen million, eight hundred sixty-nine thousand, seventy-two".