72333270 has 32 divisors (see below), whose sum is σ = 192889440. Its totient is φ = 19288800.

The previous prime is 72333259. The next prime is 72333277. The reversal of 72333270 is 7233327.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72333277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133681 + ... + 134220.

It is an arithmetic number, because the mean of its divisors is an integer number (6027795).

Almost surely, 2^72333270 is an apocalyptic number.

72333270 is an abundant number, since it is smaller than the sum of its proper divisors (120556170).

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

72333270 is a wasteful number, since it uses less digits than its factorization.

72333270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267917 (or 267911 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 27.

The square root of 72333270 is about 8504.8968247710. The cubic root of 72333270 is about 416.6576559829.

Adding to 72333270 its reverse (7233327), we get a palindrome (79566597).

The spelling of 72333270 in words is "seventy-two million, three hundred thirty-three thousand, two hundred seventy".