729615226 has 8 divisors (see below), whose sum is σ = 1095552864. Its totient is φ = 364430940.

The previous prime is 729615199. The next prime is 729615253. The reversal of 729615226 is 622516927.

It is an interprime number because it is at equal distance from previous prime (729615199) and next prime (729615253).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×729615226² = 1064676756022062152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185910 + ... + 189793.

It is an arithmetic number, because the mean of its divisors is an integer number (136944108).

Almost surely, 2^729615226 is an apocalyptic number.

729615226 is a deficient number, since it is larger than the sum of its proper divisors (365937638).

729615226 is a wasteful number, since it uses less digits than its factorization.

729615226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376676.

The product of its digits is 90720, while the sum is 40.

The square root of 729615226 is about 27011.3906713446. The cubic root of 729615226 is about 900.2531082352.

It can be divided in two parts, 72961 and 5226, that added together give a palindrome (78187).

The spelling of 729615226 in words is "seven hundred twenty-nine million, six hundred fifteen thousand, two hundred twenty-six".