1005020434 has 24 divisors (see below), whose sum is σ = 1710503424. Its totient is φ = 442087800.

The previous prime is 1005020363. The next prime is 1005020453. The reversal of 1005020434 is 4340205001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59482 + ... + 74485.

It is an arithmetic number, because the mean of its divisors is an integer number (71270976).

Almost surely, 2^1005020434 is an apocalyptic number.

1005020434 is a deficient number, since it is larger than the sum of its proper divisors (705482990).

1005020434 is a wasteful number, since it uses less digits than its factorization.

1005020434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134022 (or 134011 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1005020434 is about 31702.0572518567. The cubic root of 1005020434 is about 1001.6706852564.

Adding to 1005020434 its reverse (4340205001), we get a palindrome (5345225435).

The spelling of 1005020434 in words is "one billion, five million, twenty thousand, four hundred thirty-four".