1005010002 has 24 divisors (see below), whose sum is σ = 2178269184. Its totient is φ = 334888344.

The previous prime is 1005009989. The next prime is 1005010003. The reversal of 1005010002 is 2000105001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1005010003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56703 + ... + 72285.

It is an arithmetic number, because the mean of its divisors is an integer number (90761216).

Almost surely, 2^1005010002 is an apocalyptic number.

1005010002 is an abundant number, since it is smaller than the sum of its proper divisors (1173259182).

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

1005010002 is a wasteful number, since it uses less digits than its factorization.

1005010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19174 (or 19171 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 1005010002 is about 31701.8927195207. The cubic root of 1005010002 is about 1001.6672195011.

Adding to 1005010002 its reverse (2000105001), we get a palindrome (3005115003).

The spelling of 1005010002 in words is "one billion, five million, ten thousand, two".