438378495 has 32 divisors (see below), whose sum is σ = 713525760. Its totient is φ = 229783680.

The previous prime is 438378461. The next prime is 438378503. The reversal of 438378495 is 594873834.

It is a de Polignac number, because none of the positive numbers 2^k-438378495 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592836 + ... + 593574.

It is an arithmetic number, because the mean of its divisors is an integer number (22297680).

Almost surely, 2^438378495 is an apocalyptic number.

438378495 is a deficient number, since it is larger than the sum of its proper divisors (275147265).

438378495 is a wasteful number, since it uses less digits than its factorization.

438378495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its digits is 2903040, while the sum is 51.

The square root of 438378495 is about 20937.4901791022. The cubic root of 438378495 is about 759.6550229110.

The spelling of 438378495 in words is "four hundred thirty-eight million, three hundred seventy-eight thousand, four hundred ninety-five".