356440 has 64 divisors (see below), whose sum is σ = 979200. Its totient is φ = 114048.

The previous prime is 356399. The next prime is 356441. The reversal of 356440 is 44653.

356440 = T₁₁₃ + T₁₁₄ + ... + T₁₅₂.

356440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 356440.

It is not an unprimeable number, because it can be changed into a prime (356441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5287 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (15300).

2³⁵⁶⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 356440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489600).

356440 is an abundant number, since it is smaller than the sum of its proper divisors (622760).

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

356440 is a wasteful number, since it uses less digits than its factorization.

356440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 356440 is about 597.0259625845. The cubic root of 356440 is about 70.9025973772.

The spelling of 356440 in words is "three hundred fifty-six thousand, four hundred forty".