68615484 has 72 divisors (see below), whose sum is σ = 189394128. Its totient is φ = 19272960.

The previous prime is 68615483. The next prime is 68615489. The reversal of 68615484 is 48451686.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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 (68615483) 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, 34912 + ... + 36824.

It is an arithmetic number, because the mean of its divisors is an integer number (2630474).

Almost surely, 2^68615484 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 68615484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94697064).

68615484 is an abundant number, since it is smaller than the sum of its proper divisors (120778644).

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

68615484 is a wasteful number, since it uses less digits than its factorization.

68615484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995 (or 1986 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 68615484 is about 8283.4463842051. The cubic root of 68615484 is about 409.3932806863.

The spelling of 68615484 in words is "sixty-eight million, six hundred fifteen thousand, four hundred eighty-four".