72333351 has 32 divisors (see below), whose sum is σ = 115430400. Its totient is φ = 44599680.

The previous prime is 72333341. The next prime is 72333403. The reversal of 72333351 is 15333327.

It is not a de Polignac number, because 72333351 - 2⁵ = 72333319 is a prime.

It is a super-2 number, since 2×72333351² = 10464227333778402, which contains 22 as substring.

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 (72333341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25746 + ... + 28416.

It is an arithmetic number, because the mean of its divisors is an integer number (3607200).

Almost surely, 2^72333351 is an apocalyptic number.

72333351 is a deficient number, since it is larger than the sum of its proper divisors (43097049).

72333351 is a wasteful number, since it uses less digits than its factorization.

72333351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2750 counting only the distinct ones).

The product of its digits is 5670, while the sum is 27.

The square root of 72333351 is about 8504.9015867322. The cubic root of 72333351 is about 416.6578115096.

Adding to 72333351 its reverse (15333327), we get a palindrome (87666678).

The spelling of 72333351 in words is "seventy-two million, three hundred thirty-three thousand, three hundred fifty-one".