1040402444 has 6 divisors (see below), whose sum is σ = 1820704284. Its totient is φ = 520201220.

The previous prime is 1040402411. The next prime is 1040402453. The reversal of 1040402444 is 4442040401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130050302 + ... + 130050309.

It is an arithmetic number, because the mean of its divisors is an integer number (303450714).

Almost surely, 2^1040402444 is an apocalyptic number.

It is an amenable number.

1040402444 is a deficient number, since it is larger than the sum of its proper divisors (780301840).

1040402444 is a wasteful number, since it uses less digits than its factorization.

1040402444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260100615 (or 260100613 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1040402444 is about 32255.2700190217. The cubic root of 1040402444 is about 1013.2900728396.

Adding to 1040402444 its reverse (4442040401), we get a palindrome (5482442845).

The spelling of 1040402444 in words is "one billion, forty million, four hundred two thousand, four hundred forty-four".