5273640 has 128 divisors (see below), whose sum is σ = 18576000. Its totient is φ = 1327104.

The previous prime is 5273629. The next prime is 5273651. The reversal of 5273640 is 463725.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5273629) and next prime (5273651).

It is a super-2 number, since 2×5273640² = 55622557699200, which contains 22 as substring.

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

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, 20392 + ... + 20648.

It is an arithmetic number, because the mean of its divisors is an integer number (145125).

Almost surely, 2^5273640 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 5273640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9288000).

5273640 is an abundant number, since it is smaller than the sum of its proper divisors (13302360).

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

5273640 is a wasteful number, since it uses less digits than its factorization.

5273640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 5273640 is about 2296.4407242513. The cubic root of 5273640 is about 174.0618091946.

The spelling of 5273640 in words is "five million, two hundred seventy-three thousand, six hundred forty".