1031422140 has 96 divisors (see below), whose sum is σ = 3667292160. Its totient is φ = 235752768.

The previous prime is 1031422103. The next prime is 1031422141. The reversal of 1031422140 is 412241301.

1031422140 is a `hidden beast` number, since 103 + 1 + 422 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031422141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132652 + ... + 140211.

It is an arithmetic number, because the mean of its divisors is an integer number (38200960).

Almost surely, 2^1031422140 is an apocalyptic number.

1031422140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031422140 is an abundant number, since it is smaller than the sum of its proper divisors (2635870020).

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

1031422140 is a wasteful number, since it uses less digits than its factorization.

1031422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272888 (or 272880 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1031422140 is about 32115.7615509893. The cubic root of 1031422140 is about 1010.3662169013.

Adding to 1031422140 its reverse (412241301), we get a palindrome (1443663441).

The spelling of 1031422140 in words is "one billion, thirty-one million, four hundred twenty-two thousand, one hundred forty".