1002045406 has 8 divisors (see below), whose sum is σ = 1503251280. Its totient is φ = 500961648.

The previous prime is 1002045397. The next prime is 1002045431. The reversal of 1002045406 is 6045402001.

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

It is a congruent number.

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, 6106 + ... + 45181.

It is an arithmetic number, because the mean of its divisors is an integer number (187906410).

Almost surely, 2^1002045406 is an apocalyptic number.

1002045406 is a deficient number, since it is larger than the sum of its proper divisors (501205874).

1002045406 is an equidigital number, since it uses as much as digits as its factorization.

1002045406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61058.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1002045406 is about 31655.1007896042. The cubic root of 1002045406 is about 1000.6813376735.

Adding to 1002045406 its reverse (6045402001), we get a palindrome (7047447407).

The spelling of 1002045406 in words is "one billion, two million, forty-five thousand, four hundred six".