1042545540 has 192 divisors, whose sum is σ = 3121348608. Its totient is φ = 259660800.

The previous prime is 1042545529. The next prime is 1042545547. The reversal of 1042545540 is 455452401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1042545498 and 1042545507.

It is not an unprimeable number, because it can be changed into a prime (1042545547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8208957 + ... + 8209083.

It is an arithmetic number, because the mean of its divisors is an integer number (16257024).

Almost surely, 2^1042545540 is an apocalyptic number.

1042545540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042545540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560674304).

1042545540 is an abundant number, since it is smaller than the sum of its proper divisors (2078803068).

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

1042545540 is a wasteful number, since it uses less digits than its factorization.

1042545540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1042545540 is about 32288.4737948389. The cubic root of 1042545540 is about 1013.9853449948.

Adding to 1042545540 its reverse (455452401), we get a palindrome (1497997941).

The spelling of 1042545540 in words is "one billion, forty-two million, five hundred forty-five thousand, five hundred forty".