72630345 has 16 divisors (see below), whose sum is σ = 117944640. Its totient is φ = 38157504.

The previous prime is 72630317. The next prime is 72630353. The reversal of 72630345 is 54303627.

It is not a de Polignac number, because 72630345 - 2¹⁶ = 72564809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35130 + ... + 37139.

It is an arithmetic number, because the mean of its divisors is an integer number (7371540).

Almost surely, 2^72630345 is an apocalyptic number.

It is an amenable number.

72630345 is a deficient number, since it is larger than the sum of its proper divisors (45314295).

72630345 is a wasteful number, since it uses less digits than its factorization.

72630345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72344.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 72630345 is about 8522.3438677397. The cubic root of 72630345 is about 417.2272855350.

The spelling of 72630345 in words is "seventy-two million, six hundred thirty thousand, three hundred forty-five".