13755390 has 64 divisors (see below), whose sum is σ = 36571392. Its totient is φ = 3283200.

The previous prime is 13755389. The next prime is 13755419. The reversal of 13755390 is 9355731.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23805 + ... + 24375.

It is an arithmetic number, because the mean of its divisors is an integer number (571428).

Almost surely, 2^13755390 is an apocalyptic number.

13755390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13755390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18285696).

13755390 is an abundant number, since it is smaller than the sum of its proper divisors (22816002).

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

13755390 is a wasteful number, since it uses less digits than its factorization.

13755390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 13755390 is about 3708.8259597884. The cubic root of 13755390 is about 239.6022927067.

It can be divided in two parts, 13755 and 390, that multiplied together give a triangular number (5364450 = T₃₂₇₅).

The spelling of 13755390 in words is "thirteen million, seven hundred fifty-five thousand, three hundred ninety".