13964780 has 12 divisors (see below), whose sum is σ = 29326080. Its totient is φ = 5585904.

The previous prime is 13964779. The next prime is 13964807. The reversal of 13964780 is 8746931.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 349100 + ... + 349139.

It is an arithmetic number, because the mean of its divisors is an integer number (2443840).

Almost surely, 2^13964780 is an apocalyptic number.

13964780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13964780 is an abundant number, since it is smaller than the sum of its proper divisors (15361300).

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

13964780 is a wasteful number, since it uses less digits than its factorization.

13964780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698248 (or 698246 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 13964780 is about 3736.9479525410. The cubic root of 13964780 is about 240.8119490544.

The spelling of 13964780 in words is "thirteen million, nine hundred sixty-four thousand, seven hundred eighty".