72363320 has 16 divisors (see below), whose sum is σ = 162817560. Its totient is φ = 28945312.

The previous prime is 72363311. The next prime is 72363329. The reversal of 72363320 is 2336327.

It is an interprime number because it is at equal distance from previous prime (72363311) and next prime (72363329).

It is a self number, because there is not a number n which added to its sum of digits gives 72363320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72363329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904502 + ... + 904581.

Almost surely, 2^72363320 is an apocalyptic number.

It is an amenable number.

72363320 is an abundant number, since it is smaller than the sum of its proper divisors (90454240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72363320 is a wasteful number, since it uses less digits than its factorization.

72363320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809094 (or 1809090 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 72363320 is about 8506.6632706367. The cubic root of 72363320 is about 416.7153464902.

Adding to 72363320 its reverse (2336327), we get a palindrome (74699647).

The spelling of 72363320 in words is "seventy-two million, three hundred sixty-three thousand, three hundred twenty".