5205438 has 64 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 1450656.

The previous prime is 5205437. The next prime is 5205461. The reversal of 5205438 is 8345025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5205433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17620 + ... + 17912.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 2^5205438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5205438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6773760).

5205438 is an abundant number, since it is smaller than the sum of its proper divisors (8342082).

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

5205438 is a wasteful number, since it uses less digits than its factorization.

5205438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 5205438 is about 2281.5428990050. The cubic root of 5205438 is about 173.3081924418.

The spelling of 5205438 in words is "five million, two hundred five thousand, four hundred thirty-eight".