1244244402 has 40 divisors (see below), whose sum is σ = 2793119472. Its totient is φ = 413991000.

The previous prime is 1244244401. The next prime is 1244244403. The reversal of 1244244402 is 2044424421.

1244244402 is a `hidden beast` number, since 12 + 4 + 4 + 244 + 402 = 666.

It is an interprime number because it is at equal distance from previous prime (1244244401) and next prime (1244244403).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1244244401) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 85777 + ... + 99227.

Almost surely, 2^1244244402 is an apocalyptic number.

1244244402 is an abundant number, since it is smaller than the sum of its proper divisors (1548875070).

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

1244244402 is a wasteful number, since it uses less digits than its factorization.

1244244402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14036 (or 14027 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 1244244402 is about 35273.8486984338. The cubic root of 1244244402 is about 1075.5614595808.

Adding to 1244244402 its reverse (2044424421), we get a palindrome (3288668823).

The spelling of 1244244402 in words is "one billion, two hundred forty-four million, two hundred forty-four thousand, four hundred two".