72366450 has 192 divisors, whose sum is σ = 213736320. Its totient is φ = 16035840.

The previous prime is 72366403. The next prime is 72366451. The reversal of 72366450 is 5466327.

It is not an unprimeable number, because it can be changed into a prime (72366451) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1226521 + ... + 1226579.

It is an arithmetic number, because the mean of its divisors is an integer number (1113210).

Almost surely, 2^72366450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72366450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106868160).

72366450 is an abundant number, since it is smaller than the sum of its proper divisors (141369870).

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

72366450 is a wasteful number, since it uses less digits than its factorization.

72366450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 72366450 is about 8506.8472420751. The cubic root of 72366450 is about 416.7213545996.

The spelling of 72366450 in words is "seventy-two million, three hundred sixty-six thousand, four hundred fifty".