1240911 has 12 divisors (see below), whose sum is σ = 2048592. Its totient is φ = 709056.

The previous prime is 1240861. The next prime is 1240931. The reversal of 1240911 is 1190421.

It is not a de Polignac number, because 1240911 - 2⁹ = 1240399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9786 + ... + 9911.

It is an arithmetic number, because the mean of its divisors is an integer number (170716).

2^1240911 is an apocalyptic number.

1240911 is a deficient number, since it is larger than the sum of its proper divisors (807681).

1240911 is a wasteful number, since it uses less digits than its factorization.

1240911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19710 (or 19707 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1240911 is about 1113.9618485388. The cubic root of 1240911 is about 107.4600103647.

The spelling of 1240911 in words is "one million, two hundred forty thousand, nine hundred eleven".