1240923 has 8 divisors (see below), whose sum is σ = 1681936. Its totient is φ = 813600.

The previous prime is 1240861. The next prime is 1240931. The reversal of 1240923 is 3290421.

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

It is not a de Polignac number, because 1240923 - 2⁶ = 1240859 is a prime.

It is a Duffinian number.

1240923 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240923.

It is not an unprimeable number, because it can be changed into a prime (1240973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3208 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (210242).

2^1240923 is an apocalyptic number.

1240923 is a deficient number, since it is larger than the sum of its proper divisors (441013).

1240923 is an equidigital number, since it uses as much as digits as its factorization.

1240923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1240923 is about 1113.9672347067. The cubic root of 1240923 is about 107.4603567543.

The spelling of 1240923 in words is "one million, two hundred forty thousand, nine hundred twenty-three".