72910342 has 4 divisors (see below), whose sum is σ = 109365516. Its totient is φ = 36455170.

The previous prime is 72910337. The next prime is 72910349. The reversal of 72910342 is 24301927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24301927 = 13 ⋅1869379.

It is a self number, because there is not a number n which added to its sum of digits gives 72910342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72910349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18227584 + ... + 18227587.

It is an arithmetic number, because the mean of its divisors is an integer number (27341379).

Almost surely, 2^72910342 is an apocalyptic number.

72910342 is a deficient number, since it is larger than the sum of its proper divisors (36455174).

72910342 is a wasteful number, since it uses less digits than its factorization.

72910342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36455173.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72910342 is about 8538.7552957091. The cubic root of 72910342 is about 417.7627485403.

The spelling of 72910342 in words is "seventy-two million, nine hundred ten thousand, three hundred forty-two".