68474560 has 168 divisors, whose sum is σ = 207440784. Its totient is φ = 21288960.

The previous prime is 68474501. The next prime is 68474561. The reversal of 68474560 is 6547486.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68474561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172282 + ... + 172678.

Almost surely, 2^68474560 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 68474560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103720392).

68474560 is an abundant number, since it is smaller than the sum of its proper divisors (138966224).

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

68474560 is a wasteful number, since it uses less digits than its factorization.

68474560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 68474560 is about 8274.9356492966. The cubic root of 68474560 is about 409.1128149287.

The spelling of 68474560 in words is "sixty-eight million, four hundred seventy-four thousand, five hundred sixty".