1240234247 has 24 divisors (see below), whose sum is σ = 1468895472. Its totient is φ = 1043952000.

The previous prime is 1240234231. The next prime is 1240234277. The reversal of 1240234247 is 7424320421.

It is not a de Polignac number, because 1240234247 - 2⁴ = 1240234231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240234277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 647363 + ... + 649275.

It is an arithmetic number, because the mean of its divisors is an integer number (61203978).

Almost surely, 2^1240234247 is an apocalyptic number.

1240234247 is a deficient number, since it is larger than the sum of its proper divisors (228661225).

1240234247 is a wasteful number, since it uses less digits than its factorization.

1240234247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159 (or 2152 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 1240234247 is about 35216.9596501458. The cubic root of 1240234247 is about 1074.4047173305.

Adding to 1240234247 its reverse (7424320421), we get a palindrome (8664554668).

The spelling of 1240234247 in words is "one billion, two hundred forty million, two hundred thirty-four thousand, two hundred forty-seven".