438890067 has 48 divisors (see below), whose sum is σ = 794976000. Its totient is φ = 226670400.

The previous prime is 438890057. The next prime is 438890069. The reversal of 438890067 is 760098834.

It is a happy number.

It is not a de Polignac number, because 438890067 - 2⁷ = 438889939 is a prime.

It is a super-2 number, since 2×438890067² = 385248981822528978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (438890069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123684 + ... + 127182.

It is an arithmetic number, because the mean of its divisors is an integer number (16562000).

Almost surely, 2^438890067 is an apocalyptic number.

438890067 is a deficient number, since it is larger than the sum of its proper divisors (356085933).

438890067 is a wasteful number, since it uses less digits than its factorization.

438890067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 438890067 is about 20949.7032675883. The cubic root of 438890067 is about 759.9504047738.

The spelling of 438890067 in words is "four hundred thirty-eight million, eight hundred ninety thousand, sixty-seven".