240002551513442 has 16 divisors (see below), whose sum is σ = 363769878242232. Its totient is φ = 118746297346560.

The previous prime is 240002551513429. The next prime is 240002551513451. The reversal of 240002551513442 is 244315155200042.

It can be written as a sum of positive squares in 4 ways, for example, as 100641244704121 + 139361306809321 = 10032011^2 + 11805139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240002551513396 and 240002551513405.

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, 91684409 + ... + 94265772.

Almost surely, 2^{240002551513442} is an apocalyptic number.

240002551513442 is a deficient number, since it is larger than the sum of its proper divisors (123767326728790).

240002551513442 is a wasteful number, since it uses less digits than its factorization.

240002551513442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185956933.

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 240002551513442 in words is "two hundred forty trillion, two billion, five hundred fifty-one million, five hundred thirteen thousand, four hundred forty-two".