13772946 has 48 divisors (see below), whose sum is σ = 30873024. Its totient is φ = 4092000.

The previous prime is 13772923. The next prime is 13772953. The reversal of 13772946 is 64927731.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44131 + ... + 44441.

It is an arithmetic number, because the mean of its divisors is an integer number (643188).

Almost surely, 2^13772946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13772946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15436512).

13772946 is an abundant number, since it is smaller than the sum of its proper divisors (17100078).

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

13772946 is a wasteful number, since it uses less digits than its factorization.

13772946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 388 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 13772946 is about 3711.1919917999. The cubic root of 13772946 is about 239.7041841483.

The spelling of 13772946 in words is "thirteen million, seven hundred seventy-two thousand, nine hundred forty-six".