68263530 has 16 divisors (see below), whose sum is σ = 163832544. Its totient is φ = 18203600.

The previous prime is 68263513. The next prime is 68263543. The reversal of 68263530 is 3536286.

It is a junction number, because it is equal to n+sod(n) for n = 68263491 and 68263500.

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, 1137696 + ... + 1137755.

It is an arithmetic number, because the mean of its divisors is an integer number (10239534).

Almost surely, 2^68263530 is an apocalyptic number.

68263530 is an abundant number, since it is smaller than the sum of its proper divisors (95569014).

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

68263530 is a wasteful number, since it uses less digits than its factorization.

68263530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275461.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 68263530 is about 8262.1746532012. The cubic root of 68263530 is about 408.6921043233.

The spelling of 68263530 in words is "sixty-eight million, two hundred sixty-three thousand, five hundred thirty".