1004070021 has 8 divisors (see below), whose sum is σ = 1339703904. Its totient is φ = 668908080.

The previous prime is 1004070019. The next prime is 1004070047. The reversal of 1004070021 is 1200704001.

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

It is not a de Polignac number, because 1004070021 - 2¹ = 1004070019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004070061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112990 + ... + 121551.

It is an arithmetic number, because the mean of its divisors is an integer number (167462988).

Almost surely, 2^1004070021 is an apocalyptic number.

It is an amenable number.

1004070021 is a deficient number, since it is larger than the sum of its proper divisors (335633883).

1004070021 is a wasteful number, since it uses less digits than its factorization.

1004070021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235971.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 1004070021 is about 31687.0639378280. The cubic root of 1004070021 is about 1001.3548372537.

Adding to 1004070021 its reverse (1200704001), we get a palindrome (2204774022).

The spelling of 1004070021 in words is "one billion, four million, seventy thousand, twenty-one".