463540649 has 32 divisors (see below), whose sum is σ = 589026816. Its totient is φ = 358225920.

The previous prime is 463540633. The next prime is 463540657. The reversal of 463540649 is 946045364.

It is not a de Polignac number, because 463540649 - 2⁴ = 463540633 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (463540619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112229 + ... + 116285.

It is an arithmetic number, because the mean of its divisors is an integer number (18407088).

Almost surely, 2^463540649 is an apocalyptic number.

It is an amenable number.

463540649 is a deficient number, since it is larger than the sum of its proper divisors (125486167).

463540649 is a wasteful number, since it uses less digits than its factorization.

463540649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 463540649 is about 21529.9941709235. The cubic root of 463540649 is about 773.9197709219.

The spelling of 463540649 in words is "four hundred sixty-three million, five hundred forty thousand, six hundred forty-nine".