1040543442 has 32 divisors (see below), whose sum is σ = 2319220800. Its totient is φ = 345812544.

The previous prime is 1040543431. The next prime is 1040543443. The reversal of 1040543442 is 2443450401.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1040543443) 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, 10392 + ... + 46787.

It is an arithmetic number, because the mean of its divisors is an integer number (72475650).

Almost surely, 2^1040543442 is an apocalyptic number.

1040543442 is an abundant number, since it is smaller than the sum of its proper divisors (1278677358).

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

1040543442 is a wasteful number, since it uses less digits than its factorization.

1040543442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57527 (or 57521 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1040543442 is about 32257.4556033175. The cubic root of 1040543442 is about 1013.3358453260.

Adding to 1040543442 its reverse (2443450401), we get a palindrome (3483993843).

The spelling of 1040543442 in words is "one billion, forty million, five hundred forty-three thousand, four hundred forty-two".