8162440 has 64 divisors (see below), whose sum is σ = 21591360. Its totient is φ = 2737920.

The previous prime is 8162437. The next prime is 8162467. The reversal of 8162440 is 442618.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5007 + ... + 6433.

It is an arithmetic number, because the mean of its divisors is an integer number (337365).

Almost surely, 2^8162440 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 8162440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10795680).

8162440 is an abundant number, since it is smaller than the sum of its proper divisors (13428920).

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

8162440 is a wasteful number, since it uses less digits than its factorization.

8162440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 8162440 is about 2856.9984249208. The cubic root of 8162440 is about 201.3446065741.

The spelling of 8162440 in words is "eight million, one hundred sixty-two thousand, four hundred forty".