1040401244 has 24 divisors (see below), whose sum is σ = 1848268800. Its totient is φ = 512357040.

The previous prime is 1040401237. The next prime is 1040401247. The reversal of 1040401244 is 4421040401.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040401247) 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, 132377 + ... + 140015.

It is an arithmetic number, because the mean of its divisors is an integer number (77011200).

Almost surely, 2^1040401244 is an apocalyptic number.

It is an amenable number.

1040401244 is a deficient number, since it is larger than the sum of its proper divisors (807867556).

1040401244 is a wasteful number, since it uses less digits than its factorization.

1040401244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153 (or 8151 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1040401244 is about 32255.2514174049. The cubic root of 1040401244 is about 1013.2896832633.

Adding to 1040401244 its reverse (4421040401), we get a palindrome (5461441645).

The spelling of 1040401244 in words is "one billion, forty million, four hundred one thousand, two hundred forty-four".