1000440242 has 16 divisors (see below), whose sum is σ = 1590489432. Its totient is φ = 470334720.

The previous prime is 1000440239. The next prime is 1000440247. The reversal of 1000440242 is 2420440001.

It can be written as a sum of positive squares in 4 ways, for example, as 900660121 + 99780121 = 30011^2 + 9989^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1000440242.

It is not an unprimeable number, because it can be changed into a prime (1000440247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22208 + ... + 49940.

Almost surely, 2^1000440242 is an apocalyptic number.

1000440242 is a deficient number, since it is larger than the sum of its proper divisors (590049190).

1000440242 is a wasteful number, since it uses less digits than its factorization.

1000440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28813.

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

The square root of 1000440242 is about 31629.7366729475. The cubic root of 1000440242 is about 1000.1467258038.

Adding to 1000440242 its reverse (2420440001), we get a palindrome (3420880243).

The spelling of 1000440242 in words is "one billion, four hundred forty thousand, two hundred forty-two".