68443542 has 40 divisors (see below), whose sum is σ = 153836496. Its totient is φ = 22744368.

The previous prime is 68443541. The next prime is 68443549. The reversal of 68443542 is 24534486.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68443497 and 68443506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68443541) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 104488 + ... + 105140.

Almost surely, 2^68443542 is an apocalyptic number.

68443542 is an abundant number, since it is smaller than the sum of its proper divisors (85392954).

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

68443542 is a wasteful number, since it uses less digits than its factorization.

68443542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1305 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 68443542 is about 8273.0612230298. The cubic root of 68443542 is about 409.0510315069.

The spelling of 68443542 in words is "sixty-eight million, four hundred forty-three thousand, five hundred forty-two".