1240057 has 8 divisors (see below), whose sum is σ = 1526336. Its totient is φ = 981072.

The previous prime is 1240039. The next prime is 1240081. The reversal of 1240057 is 7500421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240007) 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, 6723 + ... + 6904.

It is an arithmetic number, because the mean of its divisors is an integer number (190792).

2^1240057 is an apocalyptic number.

It is an amenable number.

1240057 is a deficient number, since it is larger than the sum of its proper divisors (286279).

1240057 is a wasteful number, since it uses less digits than its factorization.

1240057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13647.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1240057 is about 1113.5784660274. The cubic root of 1240057 is about 107.4353532353.

Adding to 1240057 its reverse (7500421), we get a palindrome (8740478).

The spelling of 1240057 in words is "one million, two hundred forty thousand, fifty-seven".