1051440004 has 24 divisors (see below), whose sum is σ = 1956050208. Its totient is φ = 492816000.

The previous prime is 1051439969. The next prime is 1051440007. The reversal of 1051440004 is 4000441501.

It is a super-2 number, since 2×1051440004² = 2211052164023040032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051440007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13734 + ... + 47869.

It is an arithmetic number, because the mean of its divisors is an integer number (81502092).

Almost surely, 2^1051440004 is an apocalyptic number.

It is an amenable number.

1051440004 is a deficient number, since it is larger than the sum of its proper divisors (904610204).

1051440004 is a wasteful number, since it uses less digits than its factorization.

1051440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61875 (or 61873 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1051440004 is about 32425.9156231555. The cubic root of 1051440004 is about 1016.8607841945.

Adding to 1051440004 its reverse (4000441501), we get a palindrome (5051881505).

The spelling of 1051440004 in words is "one billion, fifty-one million, four hundred forty thousand, four".