1042445000 has 40 divisors (see below), whose sum is σ = 2442460350. Its totient is φ = 416976000.

The previous prime is 1042444999. The next prime is 1042445011. The reversal of 1042445000 is 5442401.

It can be written as a sum of positive squares in 5 ways, for example, as 1350244 + 1041094756 = 1162^2 + 32266^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99245 + ... + 109244.

Almost surely, 2^1042445000 is an apocalyptic number.

1042445000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042445000 is an abundant number, since it is smaller than the sum of its proper divisors (1400015350).

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

1042445000 is an equidigital number, since it uses as much as digits as its factorization.

1042445000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208515 (or 208496 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1042445000 is about 32286.9168549739. The cubic root of 1042445000 is about 1013.9527487004.

Adding to 1042445000 its reverse (5442401), we get a palindrome (1047887401).

The spelling of 1042445000 in words is "one billion, forty-two million, four hundred forty-five thousand".