72019330 has 16 divisors (see below), whose sum is σ = 129734784. Its totient is φ = 28785520.

The previous prime is 72019319. The next prime is 72019333. The reversal of 72019330 is 3391027.

It is a junction number, because it is equal to n+sod(n) for n = 72019295 and 72019304.

It is not an unprimeable number, because it can be changed into a prime (72019333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18885 + ... + 22375.

It is an arithmetic number, because the mean of its divisors is an integer number (8108424).

Almost surely, 2^72019330 is an apocalyptic number.

72019330 is a deficient number, since it is larger than the sum of its proper divisors (57715454).

72019330 is a wasteful number, since it uses less digits than its factorization.

72019330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 72019330 is about 8486.4203289726. The cubic root of 72019330 is about 416.0539909276.

The spelling of 72019330 in words is "seventy-two million, nineteen thousand, three hundred thirty".