1028311042 has 32 divisors (see below), whose sum is σ = 1714353984. Its totient is φ = 458673600.

The previous prime is 1028311033. The next prime is 1028311049. The reversal of 1028311042 is 2401138201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1028311049) 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, 430692 + ... + 433072.

It is an arithmetic number, because the mean of its divisors is an integer number (53573562).

Almost surely, 2^1028311042 is an apocalyptic number.

1028311042 is a deficient number, since it is larger than the sum of its proper divisors (686042942).

1028311042 is a wasteful number, since it uses less digits than its factorization.

1028311042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1028311042 is about 32067.2892836298. The cubic root of 1028311042 is about 1009.3493315905.

Adding to 1028311042 its reverse (2401138201), we get a palindrome (3429449243).

The spelling of 1028311042 in words is "one billion, twenty-eight million, three hundred eleven thousand, forty-two".