8051240 has 16 divisors (see below), whose sum is σ = 18115380. Its totient is φ = 3220480.

The previous prime is 8051221. The next prime is 8051257. The reversal of 8051240 is 421508.

It can be written as a sum of positive squares in 2 ways, for example, as 7761796 + 289444 = 2786^2 + 538^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100601 + ... + 100680.

Almost surely, 2^8051240 is an apocalyptic number.

It is an amenable number.

8051240 is an abundant number, since it is smaller than the sum of its proper divisors (10064140).

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

8051240 is a wasteful number, since it uses less digits than its factorization.

8051240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201292 (or 201288 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8051240 is about 2837.4707046946. The cubic root of 8051240 is about 200.4260915851.

Adding to 8051240 its reverse (421508), we get a palindrome (8472748).

The spelling of 8051240 in words is "eight million, fifty-one thousand, two hundred forty".