72232845 has 32 divisors (see below), whose sum is σ = 118920960. Its totient is φ = 37424640.

The previous prime is 72232841. The next prime is 72232871. The reversal of 72232845 is 54823227.

It is not a de Polignac number, because 72232845 - 2² = 72232841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72232841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80992 + ... + 81878.

It is an arithmetic number, because the mean of its divisors is an integer number (3716280).

Almost surely, 2^72232845 is an apocalyptic number.

It is an amenable number.

72232845 is a deficient number, since it is larger than the sum of its proper divisors (46688115).

72232845 is a wasteful number, since it uses less digits than its factorization.

72232845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its digits is 26880, while the sum is 33.

The square root of 72232845 is about 8498.9908224447. The cubic root of 72232845 is about 416.4647423373.

The spelling of 72232845 in words is "seventy-two million, two hundred thirty-two thousand, eight hundred forty-five".