1240659 has 24 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 692208.

The previous prime is 1240637. The next prime is 1240667. The reversal of 1240659 is 9560421.

1240659 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 659 = 666.

It is not a de Polignac number, because 1240659 - 2¹⁶ = 1175123 is a prime.

1240659 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2752 + ... + 3170.

It is an arithmetic number, because the mean of its divisors is an integer number (87360).

2^1240659 is an apocalyptic number.

1240659 is a deficient number, since it is larger than the sum of its proper divisors (855981).

1240659 is a wasteful number, since it uses less digits than its factorization.

1240659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1240659 is about 1113.8487329974. The cubic root of 1240659 is about 107.4527356673.

The spelling of 1240659 in words is "one million, two hundred forty thousand, six hundred fifty-nine".