1002444402 has 8 divisors (see below), whose sum is σ = 2004888816. Its totient is φ = 334148132.

The previous prime is 1002444353. The next prime is 1002444407. The reversal of 1002444402 is 2044442001.

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

1002444402 is an admirable number.

It is a super-2 number, since 2×1002444402² = 2009789558202275208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002444407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83537028 + ... + 83537039.

It is an arithmetic number, because the mean of its divisors is an integer number (250611102).

Almost surely, 2^1002444402 is an apocalyptic number.

1002444402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1002444402 is a wasteful number, since it uses less digits than its factorization.

1002444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167074072.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 1002444402 is about 31661.4024010308. The cubic root of 1002444402 is about 1000.8141376667.

Adding to 1002444402 its reverse (2044442001), we get a palindrome (3046886403).

The spelling of 1002444402 in words is "one billion, two million, four hundred forty-four thousand, four hundred two".