739222618 has 4 divisors (see below), whose sum is σ = 1108833930. Its totient is φ = 369611308.

The previous prime is 739222613. The next prime is 739222619. The reversal of 739222618 is 816222937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 816222937 = 2549 ⋅320213.

It can be written as a sum of positive squares in only one way, i.e., 383258929 + 355963689 = 19577^2 + 18867^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (739222613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184805653 + ... + 184805656.

Almost surely, 2^739222618 is an apocalyptic number.

739222618 is a deficient number, since it is larger than the sum of its proper divisors (369611312).

739222618 is a wasteful number, since it uses less digits than its factorization.

739222618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369611311.

The product of its digits is 72576, while the sum is 40.

The square root of 739222618 is about 27188.6486975723. The cubic root of 739222618 is about 904.1873265762.

The spelling of 739222618 in words is "seven hundred thirty-nine million, two hundred twenty-two thousand, six hundred eighteen".