1240993 has 4 divisors (see below), whose sum is σ = 1336468. Its totient is φ = 1145520.

The previous prime is 1240991. The next prime is 1240999. The reversal of 1240993 is 3990421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3990421 = 1061 ⋅3761.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 762129 = 692^2 + 873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240993 - 2¹ = 1240991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240991) 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, 47718 + ... + 47743.

It is an arithmetic number, because the mean of its divisors is an integer number (334117).

2^1240993 is an apocalyptic number.

1240993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1240993 is a deficient number, since it is larger than the sum of its proper divisors (95475).

1240993 is an equidigital number, since it uses as much as digits as its factorization.

1240993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95474.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1240993 is about 1113.9986535001. The cubic root of 1240993 is about 107.4623773157.

The spelling of 1240993 in words is "one million, two hundred forty thousand, nine hundred ninety-three".