1031424140 has 24 divisors (see below), whose sum is σ = 2171908032. Its totient is φ = 411442560.

The previous prime is 1031424133. The next prime is 1031424161. The reversal of 1031424140 is 414241301.

1031424140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62921 + ... + 77600.

It is an arithmetic number, because the mean of its divisors is an integer number (90496168).

Almost surely, 2^1031424140 is an apocalyptic number.

1031424140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031424140 is an abundant number, since it is smaller than the sum of its proper divisors (1140483892).

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

1031424140 is a wasteful number, since it uses less digits than its factorization.

1031424140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140897 (or 140895 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1031424140 is about 32115.7926883333. The cubic root of 1031424140 is about 1010.3668699579.

Adding to 1031424140 its reverse (414241301), we get a palindrome (1445665441).

The spelling of 1031424140 in words is "one billion, thirty-one million, four hundred twenty-four thousand, one hundred forty".