1354740644 has 24 divisors (see below), whose sum is σ = 2436546168. Its totient is φ = 658609920.

The previous prime is 1354740637. The next prime is 1354740649. The reversal of 1354740644 is 4460474531.

It can be written as a sum of positive squares in 4 ways, for example, as 774508900 + 580231744 = 27830^2 + 24088^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1354740598 and 1354740607.

It is not an unprimeable number, because it can be changed into a prime (1354740649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335582 + ... + 339594.

It is an arithmetic number, because the mean of its divisors is an integer number (101522757).

Almost surely, 2^1354740644 is an apocalyptic number.

It is an amenable number.

1354740644 is a deficient number, since it is larger than the sum of its proper divisors (1081805524).

1354740644 is a wasteful number, since it uses less digits than its factorization.

1354740644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335 (or 6333 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 1354740644 is about 36806.8015997044. The cubic root of 1354740644 is about 1106.5016183836.

The spelling of 1354740644 in words is "one billion, three hundred fifty-four million, seven hundred forty thousand, six hundred forty-four".