1040542158 has 16 divisors (see below), whose sum is σ = 2082261456. Its totient is φ = 346651200.

The previous prime is 1040542147. The next prime is 1040542159. The reversal of 1040542158 is 8512450401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040542159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37341 + ... + 58952.

It is an arithmetic number, because the mean of its divisors is an integer number (130141341).

Almost surely, 2^1040542158 is an apocalyptic number.

1040542158 is an abundant number, since it is smaller than the sum of its proper divisors (1041719298).

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

1040542158 is a wasteful number, since it uses less digits than its factorization.

1040542158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98099.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 1040542158 is about 32257.4357009357. The cubic root of 1040542158 is about 1013.3354285169.

Adding to 1040542158 its reverse (8512450401), we get a palindrome (9552992559).

The spelling of 1040542158 in words is "one billion, forty million, five hundred forty-two thousand, one hundred fifty-eight".