72434222 has 16 divisors (see below), whose sum is σ = 129572352. Its totient is φ = 29693400.

The previous prime is 72434221. The next prime is 72434227. The reversal of 72434222 is 22243427.

It is a junction number, because it is equal to n+sod(n) for n = 72434191 and 72434200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72434221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112154 + ... + 112797.

It is an arithmetic number, because the mean of its divisors is an integer number (8098272).

Almost surely, 2^72434222 is an apocalyptic number.

72434222 is a deficient number, since it is larger than the sum of its proper divisors (57138130).

72434222 is a wasteful number, since it uses less digits than its factorization.

72434222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224983.

The product of its digits is 5376, while the sum is 26.

The square root of 72434222 is about 8510.8296892841. The cubic root of 72434222 is about 416.8514021004.

Adding to 72434222 its reverse (22243427), we get a palindrome (94677649).

The spelling of 72434222 in words is "seventy-two million, four hundred thirty-four thousand, two hundred twenty-two".