1474744649 has 4 divisors (see below), whose sum is σ = 1685422464. Its totient is φ = 1264066836.

The previous prime is 1474744643. The next prime is 1474744651. The reversal of 1474744649 is 9464474741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9464474741 = 47 ⋅201371803.

It is a cyclic number.

It is not a de Polignac number, because 1474744649 - 2⁴ = 1474744633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1474744597 and 1474744606.

It is not an unprimeable number, because it can be changed into a prime (1474744643) 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 3 ways as a sum of consecutive naturals, for example, 105338897 + ... + 105338910.

It is an arithmetic number, because the mean of its divisors is an integer number (421355616).

Almost surely, 2^1474744649 is an apocalyptic number.

It is an amenable number.

1474744649 is a deficient number, since it is larger than the sum of its proper divisors (210677815).

1474744649 is an equidigital number, since it uses as much as digits as its factorization.

1474744649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210677814.

The product of its digits is 2709504, while the sum is 50.

The square root of 1474744649 is about 38402.4042085909. The cubic root of 1474744649 is about 1138.2533653491.

The spelling of 1474744649 in words is "one billion, four hundred seventy-four million, seven hundred forty-four thousand, six hundred forty-nine".