72078600 has 192 divisors, whose sum is σ = 248912640. Its totient is φ = 17107200.

The previous prime is 72078593. The next prime is 72078613. The reversal of 72078600 is 687027.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 442119 + ... + 442281.

It is an arithmetic number, because the mean of its divisors is an integer number (1296420).

Almost surely, 2^72078600 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 72078600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124456320).

72078600 is an abundant number, since it is smaller than the sum of its proper divisors (176834040).

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

72078600 is a wasteful number, since it uses less digits than its factorization.

72078600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 72078600 is about 8489.9116603178. The cubic root of 72078600 is about 416.1680934351.

The spelling of 72078600 in words is "seventy-two million, seventy-eight thousand, six hundred".