1240004223 has 12 divisors (see below), whose sum is σ = 1800120400. Its totient is φ = 822514176.

The previous prime is 1240004219. The next prime is 1240004231. The reversal of 1240004223 is 3224000421.

1240004223 is a `hidden beast` number, since 1 + 240 + 0 + 0 + 422 + 3 = 666.

It is not a de Polignac number, because 1240004223 - 2² = 1240004219 is a prime.

It is a super-2 number, since 2×1240004223² = 3075220946115667458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240004196 and 1240004205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240004263) 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, 344386 + ... + 347967.

Almost surely, 2^1240004223 is an apocalyptic number.

1240004223 is a deficient number, since it is larger than the sum of its proper divisors (560116177).

1240004223 is a wasteful number, since it uses less digits than its factorization.

1240004223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692558 (or 692555 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1240004223 is about 35213.6936858376. The cubic root of 1240004223 is about 1074.3382905912.

Adding to 1240004223 its reverse (3224000421), we get a palindrome (4464004644).

The spelling of 1240004223 in words is "one billion, two hundred forty million, four thousand, two hundred twenty-three".