1042545020 has 24 divisors (see below), whose sum is σ = 2388376368. Its totient is φ = 379107200.

The previous prime is 1042545011. The next prime is 1042545061. The reversal of 1042545020 is 205452401.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2369201 + ... + 2369640.

It is an arithmetic number, because the mean of its divisors is an integer number (99515682).

Almost surely, 2^1042545020 is an apocalyptic number.

1042545020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042545020 is an abundant number, since it is smaller than the sum of its proper divisors (1345831348).

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

1042545020 is a wasteful number, since it uses less digits than its factorization.

1042545020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738861 (or 4738859 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1042545020 is about 32288.4657424288. The cubic root of 1042545020 is about 1013.9851764098.

Adding to 1042545020 its reverse (205452401), we get a palindrome (1247997421).

The spelling of 1042545020 in words is "one billion, forty-two million, five hundred forty-five thousand, twenty".