72442911 has 16 divisors (see below), whose sum is σ = 97666560. Its totient is φ = 47760960.

The previous prime is 72442901. The next prime is 72442919. The reversal of 72442911 is 11924427.

It is not a de Polignac number, because 72442911 - 2⁹ = 72442399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72442919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167866 + ... + 168296.

It is an arithmetic number, because the mean of its divisors is an integer number (6104160).

Almost surely, 2^72442911 is an apocalyptic number.

72442911 is a deficient number, since it is larger than the sum of its proper divisors (25223649).

72442911 is a wasteful number, since it uses less digits than its factorization.

72442911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926.

The product of its digits is 4032, while the sum is 30.

The square root of 72442911 is about 8511.3401412469. The cubic root of 72442911 is about 416.8680695306.

The spelling of 72442911 in words is "seventy-two million, four hundred forty-two thousand, nine hundred eleven".