1023542340 has 24 divisors (see below), whose sum is σ = 2865918720. Its totient is φ = 272944608.

The previous prime is 1023542329. The next prime is 1023542353. The reversal of 1023542340 is 432453201.

It is a self number, because there is not a number n which added to its sum of digits gives 1023542340.

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, 8529460 + ... + 8529579.

It is an arithmetic number, because the mean of its divisors is an integer number (119413280).

Almost surely, 2^1023542340 is an apocalyptic number.

1023542340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023542340 is an abundant number, since it is smaller than the sum of its proper divisors (1842376380).

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

1023542340 is a wasteful number, since it uses less digits than its factorization.

1023542340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17059051 (or 17059049 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1023542340 is about 31992.8482633229. The cubic root of 1023542340 is about 1007.7866572617.

Adding to 1023542340 its reverse (432453201), we get a palindrome (1455995541).

The spelling of 1023542340 in words is "one billion, twenty-three million, five hundred forty-two thousand, three hundred forty".