10240442 has 4 divisors (see below), whose sum is σ = 15360666. Its totient is φ = 5120220.

The previous prime is 10240423. The next prime is 10240469. The reversal of 10240442 is 24404201.

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., 5527201 + 4713241 = 2351^2 + 2171^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10240442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560109 + ... + 2560112.

Almost surely, 2^10240442 is an apocalyptic number.

10240442 is a deficient number, since it is larger than the sum of its proper divisors (5120224).

10240442 is an equidigital number, since it uses as much as digits as its factorization.

10240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120223.

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

The square root of 10240442 is about 3200.0690617548. The cubic root of 10240442 is about 217.1565336904.

Adding to 10240442 its reverse (24404201), we get a palindrome (34644643).

The spelling of 10240442 in words is "ten million, two hundred forty thousand, four hundred forty-two".