438011 has 8 divisors (see below), whose sum is σ = 511200. Its totient is φ = 375144.

The previous prime is 438001. The next prime is 438017. The reversal of 438011 is 110834.

It is a happy number.

It is not a de Polignac number, because 438011 - 2⁶ = 437947 is a prime.

It is a super-2 number, since 2×438011² = 383707272242, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438011.

It is not an unprimeable number, because it can be changed into a prime (438017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296 + ... + 981.

It is an arithmetic number, because the mean of its divisors is an integer number (63900).

2⁴³⁸⁰¹¹ is an apocalyptic number.

438011 is a deficient number, since it is larger than the sum of its proper divisors (73189).

438011 is an equidigital number, since it uses as much as digits as its factorization.

438011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 438011 is about 661.8239947297. The cubic root of 438011 is about 75.9442689298.

Adding to 438011 its reverse (110834), we get a palindrome (548845).

The spelling of 438011 in words is "four hundred thirty-eight thousand, eleven".