438460965 has 64 divisors (see below), whose sum is σ = 795409920. Its totient is φ = 229132800.

The previous prime is 438460963. The next prime is 438460969. The reversal of 438460965 is 569064834.

438460965 is a `hidden beast` number, since 4 + 38 + 4 + 609 + 6 + 5 = 666.

It is not a de Polignac number, because 438460965 - 2¹ = 438460963 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 438460965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438460963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2792667 + ... + 2792823.

It is an arithmetic number, because the mean of its divisors is an integer number (12428280).

Almost surely, 2^438460965 is an apocalyptic number.

438460965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

438460965 is a deficient number, since it is larger than the sum of its proper divisors (356948955).

438460965 is a wasteful number, since it uses less digits than its factorization.

438460965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 453 counting only the distinct ones).

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

The square root of 438460965 is about 20939.4595202455. The cubic root of 438460965 is about 759.7026566508.

The spelling of 438460965 in words is "four hundred thirty-eight million, four hundred sixty thousand, nine hundred sixty-five".