68448534 has 32 divisors (see below), whose sum is σ = 170678016. Its totient is φ = 17778720.

The previous prime is 68448521. The next prime is 68448539. The reversal of 68448534 is 43584486.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68448539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73617 + ... + 74540.

It is an arithmetic number, because the mean of its divisors is an integer number (5333688).

Almost surely, 2^68448534 is an apocalyptic number.

68448534 is an abundant number, since it is smaller than the sum of its proper divisors (102229482).

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

68448534 is a wasteful number, since it uses less digits than its factorization.

68448534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148180.

The product of its digits is 368640, while the sum is 42.

The square root of 68448534 is about 8273.3629196355. The cubic root of 68448534 is about 409.0609761174.

The spelling of 68448534 in words is "sixty-eight million, four hundred forty-eight thousand, five hundred thirty-four".