744225077 has 8 divisors (see below), whose sum is σ = 751627800. Its totient is φ = 736833024.

The previous prime is 744225073. The next prime is 744225103. The reversal of 744225077 is 770522447.

It can be written as a sum of positive squares in 4 ways, for example, as 382046116 + 362178961 = 19546^2 + 19031^2 .

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

It is not a de Polignac number, because 744225077 - 2² = 744225073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 744225077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744225073) 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, 283073 + ... + 285689.

It is an arithmetic number, because the mean of its divisors is an integer number (93953475).

Almost surely, 2^744225077 is an apocalyptic number.

It is an amenable number.

744225077 is a deficient number, since it is larger than the sum of its proper divisors (7402723).

744225077 is a wasteful number, since it uses less digits than its factorization.

744225077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335.

The product of its (nonzero) digits is 109760, while the sum is 38.

The square root of 744225077 is about 27280.4889435655. The cubic root of 744225077 is about 906.2223451125. Note that the first 3 decimals are identical.

The spelling of 744225077 in words is "seven hundred forty-four million, two hundred twenty-five thousand, seventy-seven".