1042025445 has 16 divisors (see below), whose sum is σ = 1852489920. Its totient is φ = 555746832.

The previous prime is 1042025441. The next prime is 1042025447. The reversal of 1042025445 is 5445202401.

1042025445 is a `hidden beast` number, since 10 + 4 + 202 + 5 + 445 = 666.

It is not a de Polignac number, because 1042025445 - 2² = 1042025441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042025441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3859219 + ... + 3859488.

It is an arithmetic number, because the mean of its divisors is an integer number (115780620).

Almost surely, 2^1042025445 is an apocalyptic number.

1042025445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042025445 is a deficient number, since it is larger than the sum of its proper divisors (810464475).

1042025445 is an equidigital number, since it uses as much as digits as its factorization.

1042025445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718721 (or 7718715 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1042025445 is about 32280.4189099212. The cubic root of 1042025445 is about 1013.8167012255.

Adding to 1042025445 its reverse (5445202401), we get a palindrome (6487227846).

The spelling of 1042025445 in words is "one billion, forty-two million, twenty-five thousand, four hundred forty-five".