72030382 has 4 divisors (see below), whose sum is σ = 108045576. Its totient is φ = 36015190.

The previous prime is 72030373. The next prime is 72030389. The reversal of 72030382 is 28303027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28303027 = 19 ⋅1489633.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72030389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18007594 + ... + 18007597.

It is an arithmetic number, because the mean of its divisors is an integer number (27011394).

Almost surely, 2^72030382 is an apocalyptic number.

72030382 is a deficient number, since it is larger than the sum of its proper divisors (36015194).

72030382 is a wasteful number, since it uses less digits than its factorization.

72030382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36015193.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 72030382 is about 8487.0714619355. The cubic root of 72030382 is about 416.0752722212.

The spelling of 72030382 in words is "seventy-two million, thirty thousand, three hundred eighty-two".