1042343505 has 32 divisors (see below), whose sum is σ = 2117779200. Its totient is φ = 476499456.

The previous prime is 1042343503. The next prime is 1042343507. The reversal of 1042343505 is 5053432401.

It is an interprime number because it is at equal distance from previous prime (1042343503) and next prime (1042343507).

It is not a de Polignac number, because 1042343505 - 2¹ = 1042343503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1042343503) 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, 550560 + ... + 552449.

It is an arithmetic number, because the mean of its divisors is an integer number (66180600).

Almost surely, 2^1042343505 is an apocalyptic number.

1042343505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042343505 is an abundant number, since it is smaller than the sum of its proper divisors (1075435695).

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

1042343505 is a wasteful number, since it uses less digits than its factorization.

1042343505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103030 (or 1103024 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1042343505 is about 32285.3450500378. The cubic root of 1042343505 is about 1013.9198406575.

Adding to 1042343505 its reverse (5053432401), we get a palindrome (6095775906).

The spelling of 1042343505 in words is "one billion, forty-two million, three hundred forty-three thousand, five hundred five".