1040321144 has 32 divisors (see below), whose sum is σ = 1971242400. Its totient is φ = 514684800.

The previous prime is 1040321143. The next prime is 1040321159. The reversal of 1040321144 is 4411230401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040321143) 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, 333062 + ... + 336170.

It is an arithmetic number, because the mean of its divisors is an integer number (61601325).

Almost surely, 2^1040321144 is an apocalyptic number.

It is an amenable number.

1040321144 is a deficient number, since it is larger than the sum of its proper divisors (930921256).

1040321144 is a wasteful number, since it uses less digits than its factorization.

1040321144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1040321144 is about 32254.0097352252. The cubic root of 1040321144 is about 1013.2636783646.

Adding to 1040321144 its reverse (4411230401), we get a palindrome (5451551545).

The spelling of 1040321144 in words is "one billion, forty million, three hundred twenty-one thousand, one hundred forty-four".