1042544090 has 24 divisors (see below), whose sum is σ = 2182960692. Its totient is φ = 357443520.

The previous prime is 1042544089. The next prime is 1042544099. The reversal of 1042544090 is 904452401.

It can be written as a sum of positive squares in 2 ways, for example, as 958583521 + 83960569 = 30961^2 + 9163^2 .

It is not an unprimeable number, because it can be changed into a prime (1042544099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1063331 + ... + 1064310.

Almost surely, 2^1042544090 is an apocalyptic number.

1042544090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1042544090 is an abundant number, since it is smaller than the sum of its proper divisors (1140416602).

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

1042544090 is a wasteful number, since it uses less digits than its factorization.

1042544090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127662 (or 2127655 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1042544090 is about 32288.4513409981. The cubic root of 1042544090 is about 1013.9848749020.

Adding to 1042544090 its reverse (904452401), we get a palindrome (1946996491).

The spelling of 1042544090 in words is "one billion, forty-two million, five hundred forty-four thousand, ninety".