1344740477 has 4 divisors (see below), whose sum is σ = 1423842876. Its totient is φ = 1265638080.

The previous prime is 1344740473. The next prime is 1344740503. The reversal of 1344740477 is 7740474431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1119170116 + 225570361 = 33454^2 + 15019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344740477 - 2² = 1344740473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344740473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39551174 + ... + 39551207.

It is an arithmetic number, because the mean of its divisors is an integer number (355960719).

Almost surely, 2^1344740477 is an apocalyptic number.

1344740477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1344740477 is a deficient number, since it is larger than the sum of its proper divisors (79102399).

1344740477 is an equidigital number, since it uses as much as digits as its factorization.

1344740477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79102398.

The product of its (nonzero) digits is 263424, while the sum is 41.

The square root of 1344740477 is about 36670.7032520512. The cubic root of 1344740477 is about 1103.7723039681.

The spelling of 1344740477 in words is "one billion, three hundred forty-four million, seven hundred forty thousand, four hundred seventy-seven".