1042143040 has 28 divisors (see below), whose sum is σ = 2481603876. Its totient is φ = 416857088.

The previous prime is 1042143031. The next prime is 1042143049. The reversal of 1042143040 is 403412401.

It is an interprime number because it is at equal distance from previous prime (1042143031) and next prime (1042143049).

It can be written as a sum of positive squares in 2 ways, for example, as 269747776 + 772395264 = 16424^2 + 27792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1042142999 and 1042143017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042143049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628029 + ... + 1628668.

Almost surely, 2^1042143040 is an apocalyptic number.

1042143040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042143040 is an abundant number, since it is smaller than the sum of its proper divisors (1439460836).

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

1042143040 is an equidigital number, since it uses as much as digits as its factorization.

1042143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256714 (or 3256704 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1042143040 is about 32282.2403187883. The cubic root of 1042143040 is about 1013.8548369835.

Adding to 1042143040 its reverse (403412401), we get a palindrome (1445555441).

The spelling of 1042143040 in words is "one billion, forty-two million, one hundred forty-three thousand, forty".