72838022 has 4 divisors (see below), whose sum is σ = 109257036. Its totient is φ = 36419010.

The previous prime is 72838019. The next prime is 72838027. The reversal of 72838022 is 22083827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22083827 = 1747 ⋅12641.

It is a self number, because there is not a number n which added to its sum of digits gives 72838022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72838027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18209504 + ... + 18209507.

It is an arithmetic number, because the mean of its divisors is an integer number (27314259).

Almost surely, 2^72838022 is an apocalyptic number.

72838022 is a deficient number, since it is larger than the sum of its proper divisors (36419014).

72838022 is a wasteful number, since it uses less digits than its factorization.

72838022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36419013.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 72838022 is about 8534.5194357972. The cubic root of 72838022 is about 417.6245761129.

The spelling of 72838022 in words is "seventy-two million, eight hundred thirty-eight thousand, twenty-two".