10240042402 has 4 divisors (see below), whose sum is σ = 15360063606. Its totient is φ = 5120021200.

The previous prime is 10240042399. The next prime is 10240042427. The reversal of 10240042402 is 20424004201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6018811561 + 4221230841 = 77581^2 + 64971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10240042402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560010599 + ... + 2560010602.

Almost surely, 2^10240042402 is an apocalyptic number.

10240042402 is a deficient number, since it is larger than the sum of its proper divisors (5120021204).

10240042402 is an equidigital number, since it uses as much as digits as its factorization.

10240042402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120021203.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 10240042402 its reverse (20424004201), we get a palindrome (30664046603).

The spelling of 10240042402 in words is "ten billion, two hundred forty million, forty-two thousand, four hundred two".