469638561 has 64 divisors (see below), whose sum is σ = 796590080. Its totient is φ = 240045120.

The previous prime is 469638553. The next prime is 469638581. The reversal of 469638561 is 165836964.

It is not a de Polignac number, because 469638561 - 2³ = 469638553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 469638561.

It is not an unprimeable number, because it can be changed into a prime (469638511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 531426 + ... + 532308.

It is an arithmetic number, because the mean of its divisors is an integer number (12446720).

Almost surely, 2^469638561 is an apocalyptic number.

It is an amenable number.

469638561 is a deficient number, since it is larger than the sum of its proper divisors (326951519).

469638561 is a wasteful number, since it uses less digits than its factorization.

469638561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its digits is 933120, while the sum is 48.

The square root of 469638561 is about 21671.1458164999. The cubic root of 469638561 is about 777.2986550037.

The spelling of 469638561 in words is "four hundred sixty-nine million, six hundred thirty-eight thousand, five hundred sixty-one".