72654450 has 72 divisors (see below), whose sum is σ = 198101904. Its totient is φ = 17608800.

The previous prime is 72654443. The next prime is 72654473. The reversal of 72654450 is 5445627.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16149 + ... + 20151.

Almost surely, 2^72654450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72654450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99050952).

72654450 is an abundant number, since it is smaller than the sum of its proper divisors (125447454).

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

72654450 is a wasteful number, since it uses less digits than its factorization.

72654450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040 (or 4024 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 72654450 is about 8523.7579740394. The cubic root of 72654450 is about 417.2734377381.

The spelling of 72654450 in words is "seventy-two million, six hundred fifty-four thousand, four hundred fifty".