1042423040 has 36 divisors (see below), whose sum is σ = 2496932004. Its totient is φ = 416968704.

The previous prime is 1042423037. The next prime is 1042423061. The reversal of 1042423040 is 403242401.

It can be written as a sum of positive squares in 2 ways, for example, as 200958976 + 841464064 = 14176^2 + 29008^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 405917 + ... + 408476.

Almost surely, 2^1042423040 is an apocalyptic number.

1042423040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042423040 is an abundant number, since it is smaller than the sum of its proper divisors (1454508964).

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

1042423040 is an frugal number, since it uses more digits than its factorization.

1042423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814414 (or 814400 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1042423040 is about 32286.5767773544. The cubic root of 1042423040 is about 1013.9456287217.

Adding to 1042423040 its reverse (403242401), we get a palindrome (1445665441).

The spelling of 1042423040 in words is "one billion, forty-two million, four hundred twenty-three thousand, forty".