1244010402 has 12 divisors (see below), whose sum is σ = 2695355910. Its totient is φ = 414670128.

The previous prime is 1244010401. The next prime is 1244010403. The reversal of 1244010402 is 2040104421.

It is an interprime number because it is at equal distance from previous prime (1244010401) and next prime (1244010403).

It can be written as a sum of positive squares in only one way, i.e., 840362121 + 403648281 = 28989^2 + 20091^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 69111689 = 1244010402 / (1 + 2 + 4 + 4 + 0 + 1 + 0 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (1244010401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34555827 + ... + 34555862.

Almost surely, 2^1244010402 is an apocalyptic number.

1244010402 is an abundant number, since it is smaller than the sum of its proper divisors (1451345508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244010402 is a wasteful number, since it uses less digits than its factorization.

1244010402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69111697 (or 69111694 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1244010402 is about 35270.5316376150. The cubic root of 1244010402 is about 1075.4940298592.

Adding to 1244010402 its reverse (2040104421), we get a palindrome (3284114823).

The spelling of 1244010402 in words is "one billion, two hundred forty-four million, ten thousand, four hundred two".