240042220424 has 32 divisors (see below), whose sum is σ = 456837071040. Its totient is φ = 118222104000.

The previous prime is 240042220373. The next prime is 240042220469. The reversal of 240042220424 is 424022240042.

It is a junction number, because it is equal to n+sod(n) for n = 240042220393 and 240042220402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427499 + ... + 814149.

It is an arithmetic number, because the mean of its divisors is an integer number (14276158470).

Almost surely, 2^240042220424 is an apocalyptic number.

It is an amenable number.

240042220424 is a deficient number, since it is larger than the sum of its proper divisors (216794850616).

240042220424 is a wasteful number, since it uses less digits than its factorization.

240042220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387821 (or 387817 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 240042220424 its reverse (424022240042), we get a palindrome (664064460466).

The spelling of 240042220424 in words is "two hundred forty billion, forty-two million, two hundred twenty thousand, four hundred twenty-four".