13773240 has 192 divisors, whose sum is σ = 50450400. Its totient is φ = 3359232.

The previous prime is 13773229. The next prime is 13773293. The reversal of 13773240 is 4237731.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126306 + ... + 126414.

Almost surely, 2^13773240 is an apocalyptic number.

13773240 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 13773240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25225200).

13773240 is an abundant number, since it is smaller than the sum of its proper divisors (36677160).

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

13773240 is a wasteful number, since it uses less digits than its factorization.

13773240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 13773240 is about 3711.2316015037. The cubic root of 13773240 is about 239.7058897270.

The spelling of 13773240 in words is "thirteen million, seven hundred seventy-three thousand, two hundred forty".