1005723396 has 36 divisors (see below), whose sum is σ = 2546544000. Its totient is φ = 334674288.

The previous prime is 1005723377. The next prime is 1005723401. The reversal of 1005723396 is 6933275001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1005723396² = 2022959098523545632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1005723396.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1756 + ... + 44883.

Almost surely, 2^1005723396 is an apocalyptic number.

It is an amenable number.

1005723396 is an abundant number, since it is smaller than the sum of its proper divisors (1540820604).

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

1005723396 is a wasteful number, since it uses less digits than its factorization.

1005723396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47248 (or 47243 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 1005723396 is about 31713.1423230181. The cubic root of 1005723396 is about 1001.9041705000.

Adding to 1005723396 its reverse (6933275001), we get a palindrome (7938998397).

The spelling of 1005723396 in words is "one billion, five million, seven hundred twenty-three thousand, three hundred ninety-six".