240402240424 has 24 divisors (see below), whose sum is σ = 475726738410. Its totient is φ = 113874744096.

The previous prime is 240402240401. The next prime is 240402240427. The reversal of 240402240424 is 424042204042.

It can be written as a sum of positive squares in only one way, i.e., 232352920900 + 8049319524 = 482030^2 + 89718^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240402240392 and 240402240401.

It is not an unprimeable number, because it can be changed into a prime (240402240427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41617999 + ... + 41623774.

Almost surely, 2^240402240424 is an apocalyptic number.

It is an amenable number.

240402240424 is a deficient number, since it is larger than the sum of its proper divisors (235324497986).

240402240424 is a wasteful number, since it uses less digits than its factorization.

240402240424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83241817 (or 83241794 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 240402240424 its reverse (424042204042), we get a palindrome (664444444466).

The spelling of 240402240424 in words is "two hundred forty billion, four hundred two million, two hundred forty thousand, four hundred twenty-four".