1031420442 has 16 divisors (see below), whose sum is σ = 2221521120. Its totient is φ = 317360112.

The previous prime is 1031420417. The next prime is 1031420443. The reversal of 1031420442 is 2440241301.

It is not an unprimeable number, because it can be changed into a prime (1031420443) 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 7 ways as a sum of consecutive naturals, for example, 6611592 + ... + 6611747.

It is an arithmetic number, because the mean of its divisors is an integer number (138845070).

Almost surely, 2^1031420442 is an apocalyptic number.

1031420442 is an abundant number, since it is smaller than the sum of its proper divisors (1190100678).

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

1031420442 is a wasteful number, since it uses less digits than its factorization.

1031420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13223357.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1031420442 is about 32115.7351153605. The cubic root of 1031420442 is about 1010.3656624556.

Adding to 1031420442 its reverse (2440241301), we get a palindrome (3471661743).

The spelling of 1031420442 in words is "one billion, thirty-one million, four hundred twenty thousand, four hundred forty-two".