1042340534 has 4 divisors (see below), whose sum is σ = 1563510804. Its totient is φ = 521170266.

The previous prime is 1042340527. The next prime is 1042340539. The reversal of 1042340534 is 4350432401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4350432401 = 7 ⋅621490343.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042340539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260585132 + ... + 260585135.

It is an arithmetic number, because the mean of its divisors is an integer number (390877701).

Almost surely, 2^1042340534 is an apocalyptic number.

1042340534 is a deficient number, since it is larger than the sum of its proper divisors (521170270).

1042340534 is an equidigital number, since it uses as much as digits as its factorization.

1042340534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521170269.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1042340534 is about 32285.2990384169. The cubic root of 1042340534 is about 1013.9188773287.

Adding to 1042340534 its reverse (4350432401), we get a palindrome (5392772935).

The spelling of 1042340534 in words is "one billion, forty-two million, three hundred forty thousand, five hundred thirty-four".