1044255540 has 24 divisors (see below), whose sum is σ = 2923915680. Its totient is φ = 278468128.

The previous prime is 1044255539. The next prime is 1044255571. The reversal of 1044255540 is 455524401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1044255498 and 1044255507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8702070 + ... + 8702189.

It is an arithmetic number, because the mean of its divisors is an integer number (121829820).

Almost surely, 2^1044255540 is an apocalyptic number.

1044255540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044255540 is an abundant number, since it is smaller than the sum of its proper divisors (1879660140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1044255540 is a wasteful number, since it uses less digits than its factorization.

1044255540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17404271 (or 17404269 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1044255540 is about 32314.9429830845. The cubic root of 1044255540 is about 1014.5394272028.

Adding to 1044255540 its reverse (455524401), we get a palindrome (1499779941).

The spelling of 1044255540 in words is "one billion, forty-four million, two hundred fifty-five thousand, five hundred forty".