10400002442 has 8 divisors (see below), whose sum is σ = 15600446532. Its totient is φ = 5199853600.

The previous prime is 10400002429. The next prime is 10400002447. The reversal of 10400002442 is 24420000401.

It can be written as a sum of positive squares in 2 ways, for example, as 9465538681 + 934463761 = 97291^2 + 30569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10400002442.

It is not an unprimeable number, because it can be changed into a prime (10400002447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71342 + ... + 160902.

Almost surely, 2^10400002442 is an apocalyptic number.

10400002442 is a deficient number, since it is larger than the sum of its proper divisors (5200444090).

10400002442 is an equidigital number, since it uses as much as digits as its factorization.

10400002442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147624.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 10400002442 its reverse (24420000401), we get a palindrome (34820002843).

The spelling of 10400002442 in words is "ten billion, four hundred million, two thousand, four hundred forty-two".