72374550 has 48 divisors (see below), whose sum is σ = 180591120. Its totient is φ = 19181440.

The previous prime is 72374543. The next prime is 72374551. The reversal of 72374550 is 5547327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72374551) 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, 24556 + ... + 27344.

It is an arithmetic number, because the mean of its divisors is an integer number (3762315).

Almost surely, 2^72374550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72374550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90295560).

72374550 is an abundant number, since it is smaller than the sum of its proper divisors (108216570).

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

72374550 is a wasteful number, since it uses less digits than its factorization.

72374550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 72374550 is about 8507.3233158262. The cubic root of 72374550 is about 416.7369019379.

The spelling of 72374550 in words is "seventy-two million, three hundred seventy-four thousand, five hundred fifty".