1240742 has 8 divisors (see below), whose sum is σ = 1906632. Its totient is φ = 605200.

The previous prime is 1240741. The next prime is 1240751. The reversal of 1240742 is 2470421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240741) 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, 7484 + ... + 7647.

It is an arithmetic number, because the mean of its divisors is an integer number (238329).

2^1240742 is an apocalyptic number.

1240742 is a deficient number, since it is larger than the sum of its proper divisors (665890).

1240742 is a wasteful number, since it uses less digits than its factorization.

1240742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15174.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1240742 is about 1113.8859905753. The cubic root of 1240742 is about 107.4551318074.

The spelling of 1240742 in words is "one million, two hundred forty thousand, seven hundred forty-two".