872240 has 20 divisors (see below), whose sum is σ = 2028144. Its totient is φ = 348864.

The previous prime is 872237. The next prime is 872243. The reversal of 872240 is 42278.

872240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (872237) and next prime (872243).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (872243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5372 + ... + 5531.

2⁸⁷²²⁴⁰ is an apocalyptic number.

872240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

872240 is an abundant number, since it is smaller than the sum of its proper divisors (1155904).

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

872240 is a wasteful number, since it uses less digits than its factorization.

872240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10916 (or 10910 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 872240 is about 933.9378994344. The cubic root of 872240 is about 95.5458876904.

The spelling of 872240 in words is "eight hundred seventy-two thousand, two hundred forty".