1004468781 has 8 divisors (see below), whose sum is σ = 1349837824. Its totient is φ = 664372800.

The previous prime is 1004468779. The next prime is 1004468791. The reversal of 1004468781 is 1878644001.

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

It is not a de Polignac number, because 1004468781 - 2¹ = 1004468779 is a prime.

It is a super-2 number, since 2×1004468781² = 2017915064007251922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004468701) 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, 1317820 + ... + 1318581.

It is an arithmetic number, because the mean of its divisors is an integer number (168729728).

Almost surely, 2^1004468781 is an apocalyptic number.

It is an amenable number.

1004468781 is a deficient number, since it is larger than the sum of its proper divisors (345369043).

1004468781 is a wasteful number, since it uses less digits than its factorization.

1004468781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636531.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 1004468781 is about 31693.3554708238. The cubic root of 1004468781 is about 1001.4873802698.

The spelling of 1004468781 in words is "one billion, four million, four hundred sixty-eight thousand, seven hundred eighty-one".