1240367345 has 64 divisors (see below), whose sum is σ = 1892367360. Its totient is φ = 760455168.

The previous prime is 1240367341. The next prime is 1240367363. The reversal of 1240367345 is 5437630421.

It is a cyclic number.

It is not a de Polignac number, because 1240367345 - 2² = 1240367341 is a prime.

It is a super-2 number, since 2×1240367345² = 3077022301084698050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (1240367341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3188411 + ... + 3188799.

It is an arithmetic number, because the mean of its divisors is an integer number (29568240).

Almost surely, 2^1240367345 is an apocalyptic number.

It is an amenable number.

1240367345 is a deficient number, since it is larger than the sum of its proper divisors (652000015).

1240367345 is a wasteful number, since it uses less digits than its factorization.

1240367345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 1240367345 is about 35218.8492855743. The cubic root of 1240367345 is about 1074.4431498563.

Adding to 1240367345 its reverse (5437630421), we get a palindrome (6677997766).

The spelling of 1240367345 in words is "one billion, two hundred forty million, three hundred sixty-seven thousand, three hundred forty-five".