438073049 has 4 divisors (see below), whose sum is σ = 442589364. Its totient is φ = 433556736.

The previous prime is 438072991. The next prime is 438073093. The reversal of 438073049 is 940370834.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 314707600 + 123365449 = 17740^2 + 11107^2 .

It is a cyclic number.

It is not a de Polignac number, because 438073049 - 2⁸ = 438072793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438073549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258012 + ... + 2258205.

It is an arithmetic number, because the mean of its divisors is an integer number (110647341).

Almost surely, 2^438073049 is an apocalyptic number.

It is an amenable number.

438073049 is a deficient number, since it is larger than the sum of its proper divisors (4516315).

438073049 is an equidigital number, since it uses as much as digits as its factorization.

438073049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516314.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 438073049 is about 20930.1946718133. The cubic root of 438073049 is about 759.4785486979.

The spelling of 438073049 in words is "four hundred thirty-eight million, seventy-three thousand, forty-nine".