1005936380 has 48 divisors (see below), whose sum is σ = 2228355360. Its totient is φ = 380390400.

The previous prime is 1005936377. The next prime is 1005936383. The reversal of 1005936380 is 836395001.

It is an interprime number because it is at equal distance from previous prime (1005936377) and next prime (1005936383).

It is a self number, because there is not a number n which added to its sum of digits gives 1005936380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005936383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195440 + ... + 200520.

It is an arithmetic number, because the mean of its divisors is an integer number (46424070).

Almost surely, 2^1005936380 is an apocalyptic number.

1005936380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1005936380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1114177680).

1005936380 is an abundant number, since it is smaller than the sum of its proper divisors (1222418980).

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

1005936380 is a wasteful number, since it uses less digits than its factorization.

1005936380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630 (or 5628 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1005936380 is about 31716.5001221762. The cubic root of 1005936380 is about 1001.9748905731.

The spelling of 1005936380 in words is "one billion, five million, nine hundred thirty-six thousand, three hundred eighty".