438055401 has 32 divisors (see below), whose sum is σ = 698664960. Its totient is φ = 238702464.

The previous prime is 438055399. The next prime is 438055403. The reversal of 438055401 is 104550834.

It is an interprime number because it is at equal distance from previous prime (438055399) and next prime (438055403).

It is not a de Polignac number, because 438055401 - 2¹ = 438055399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438055403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181861 + ... + 184253.

It is an arithmetic number, because the mean of its divisors is an integer number (21833280).

Almost surely, 2^438055401 is an apocalyptic number.

It is an amenable number.

438055401 is a deficient number, since it is larger than the sum of its proper divisors (260609559).

438055401 is a wasteful number, since it uses less digits than its factorization.

438055401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 438055401 is about 20929.7730756929. The cubic root of 438055401 is about 759.4683498985.

The spelling of 438055401 in words is "four hundred thirty-eight million, fifty-five thousand, four hundred one".