1002244431 has 8 divisors (see below), whose sum is σ = 1337548464. Its totient is φ = 667551680.

The previous prime is 1002244429. The next prime is 1002244459. The reversal of 1002244431 is 1344422001.

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

It is a cyclic number.

It is not a de Polignac number, because 1002244431 - 2¹ = 1002244429 is a prime.

It is a super-2 number, since 2×1002244431² = 2008987798941027522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002244398 and 1002244407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002294431) 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, 148980 + ... + 155561.

It is an arithmetic number, because the mean of its divisors is an integer number (167193558).

Almost surely, 2^1002244431 is an apocalyptic number.

1002244431 is a deficient number, since it is larger than the sum of its proper divisors (335304033).

1002244431 is a wasteful number, since it uses less digits than its factorization.

1002244431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305641.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1002244431 is about 31658.2442817033. The cubic root of 1002244431 is about 1000.7475846446.

Adding to 1002244431 its reverse (1344422001), we get a palindrome (2346666432).

The spelling of 1002244431 in words is "one billion, two million, two hundred forty-four thousand, four hundred thirty-one".