654044949 has 28 divisors (see below), whose sum is σ = 982716300. Its totient is φ = 435098304.

The previous prime is 654044947. The next prime is 654044957. The reversal of 654044949 is 949440456.

It can be written as a sum of positive squares in 2 ways, for example, as 253764900 + 400280049 = 15930^2 + 20007^2 .

It is not a de Polignac number, because 654044949 - 2¹ = 654044947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654044947) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 589207 + ... + 590315.

Almost surely, 2^654044949 is an apocalyptic number.

It is an amenable number.

654044949 is a deficient number, since it is larger than the sum of its proper divisors (328671351).

654044949 is an equidigital number, since it uses as much as digits as its factorization.

654044949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 654044949 is about 25574.3025124831. The cubic root of 654044949 is about 868.0322590777.

The spelling of 654044949 in words is "six hundred fifty-four million, forty-four thousand, nine hundred forty-nine".