738257645 has 8 divisors (see below), whose sum is σ = 898387200. Its totient is φ = 582287440.

The previous prime is 738257621. The next prime is 738257647. The reversal of 738257645 is 546752837.

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

It is a de Polignac number, because none of the positive numbers 2^k-738257645 is a prime.

It is a super-3 number, since 3×738257645³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 738257645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738257647) 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, 1039445 + ... + 1040154.

It is an arithmetic number, because the mean of its divisors is an integer number (112298400).

Almost surely, 2^738257645 is an apocalyptic number.

It is an amenable number.

738257645 is a deficient number, since it is larger than the sum of its proper divisors (160129555).

738257645 is a wasteful number, since it uses less digits than its factorization.

738257645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079675.

The product of its digits is 1411200, while the sum is 47.

The square root of 738257645 is about 27170.8970223657. The cubic root of 738257645 is about 903.7937165553.

The spelling of 738257645 in words is "seven hundred thirty-eight million, two hundred fifty-seven thousand, six hundred forty-five".