5381640 has 160 divisors (see below), whose sum is σ = 19863360. Its totient is φ = 1296000.

The previous prime is 5381627. The next prime is 5381653. The reversal of 5381640 is 461835.

It is an interprime number because it is at equal distance from previous prime (5381627) and next prime (5381653).

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

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 35565 + ... + 35715.

It is an arithmetic number, because the mean of its divisors is an integer number (124146).

Almost surely, 2^5381640 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 5381640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9931680).

5381640 is an abundant number, since it is smaller than the sum of its proper divisors (14481720).

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

5381640 is a wasteful number, since it uses less digits than its factorization.

5381640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5381640 is about 2319.8362011142. The cubic root of 5381640 is about 175.2420053157.

The spelling of 5381640 in words is "five million, three hundred eighty-one thousand, six hundred forty".