68945272 has 64 divisors (see below), whose sum is σ = 146694240. Its totient is φ = 30105600.

The previous prime is 68945269. The next prime is 68945273. The reversal of 68945272 is 27254986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68945273) 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, 349878 + ... + 350074.

Almost surely, 2^68945272 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 68945272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73347120).

68945272 is an abundant number, since it is smaller than the sum of its proper divisors (77748968).

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

68945272 is a wasteful number, since it uses less digits than its factorization.

68945272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 348 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 68945272 is about 8303.3289709610. The cubic root of 68945272 is about 410.0481244324.

The spelling of 68945272 in words is "sixty-eight million, nine hundred forty-five thousand, two hundred seventy-two".