1240884 has 18 divisors (see below), whose sum is σ = 3136770. Its totient is φ = 413616.

The previous prime is 1240861. The next prime is 1240931. The reversal of 1240884 is 4880421.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 138384 = 1050^2 + 372^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17199 + ... + 17270.

It is an arithmetic number, because the mean of its divisors is an integer number (174265).

2^1240884 is an apocalyptic number.

It is an amenable number.

1240884 is an abundant number, since it is smaller than the sum of its proper divisors (1895886).

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

1240884 is a wasteful number, since it uses less digits than its factorization.

1240884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34479 (or 34474 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 1240884 is about 1113.9497295659. The cubic root of 1240884 is about 107.4592309800.

The spelling of 1240884 in words is "one million, two hundred forty thousand, eight hundred eighty-four".