1240738 has 16 divisors (see below), whose sum is σ = 1984320. Its totient is φ = 580176.

The previous prime is 1240717. The next prime is 1240739. The reversal of 1240738 is 8370421.

It is not an unprimeable number, because it can be changed into a prime (1240739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3756 + ... + 4072.

It is an arithmetic number, because the mean of its divisors is an integer number (124020).

2^1240738 is an apocalyptic number.

1240738 is a deficient number, since it is larger than the sum of its proper divisors (743582).

1240738 is a wasteful number, since it uses less digits than its factorization.

1240738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1240738 is about 1113.8841950580. The cubic root of 1240738 is about 107.4550163332.

The spelling of 1240738 in words is "one million, two hundred forty thousand, seven hundred thirty-eight".