68494272 has 224 divisors, whose sum is σ = 233501184. Its totient is φ = 17203200.

The previous prime is 68494249. The next prime is 68494273. The reversal of 68494272 is 27249486.

It is a tau number, because it is divible by the number of its divisors (224).

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 (68494273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606088 + ... + 606200.

It is an arithmetic number, because the mean of its divisors is an integer number (1042416).

Almost surely, 2^68494272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68494272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116750592).

68494272 is an abundant number, since it is smaller than the sum of its proper divisors (165006912).

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

68494272 is a wasteful number, since it uses less digits than its factorization.

68494272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 177 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 68494272 is about 8276.1266302540. The cubic root of 68494272 is about 409.1520687192.

The spelling of 68494272 in words is "sixty-eight million, four hundred ninety-four thousand, two hundred seventy-two".