1244122402 has 8 divisors (see below), whose sum is σ = 1868058396. Its totient is φ = 621436272.

The previous prime is 1244122391. The next prime is 1244122427. The reversal of 1244122402 is 2042214421.

It can be written as a sum of positive squares in 2 ways, for example, as 1244043441 + 78961 = 35271^2 + 281^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309973 + ... + 313960.

Almost surely, 2^1244122402 is an apocalyptic number.

1244122402 is a deficient number, since it is larger than the sum of its proper divisors (623935994).

1244122402 is an equidigital number, since it uses as much as digits as its factorization.

1244122402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624932.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1244122402 is about 35272.1193295781. The cubic root of 1244122402 is about 1075.5263049689.

Adding to 1244122402 its reverse (2042214421), we get a palindrome (3286336823).

It can be divided in two parts, 12441 and 22402, that added together give a palindrome (34843).

The spelling of 1244122402 in words is "one billion, two hundred forty-four million, one hundred twenty-two thousand, four hundred two".