1240497 has 12 divisors (see below), whose sum is σ = 1801540. Its totient is φ = 822528.

The previous prime is 1240487. The next prime is 1240511. The reversal of 1240497 is 7940421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 772641 + 467856 = 879^2 + 684^2 .

It is not a de Polignac number, because 1240497 - 2⁸ = 1240241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240497.

It is not an unprimeable number, because it can be changed into a prime (1240487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2829 + ... + 3237.

2^1240497 is an apocalyptic number.

It is an amenable number.

1240497 is a deficient number, since it is larger than the sum of its proper divisors (561043).

1240497 is a wasteful number, since it uses less digits than its factorization.

1240497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1240497 is about 1113.7760097973. The cubic root of 1240497 is about 107.4480585560.

The spelling of 1240497 in words is "one million, two hundred forty thousand, four hundred ninety-seven".