438680871 has 24 divisors (see below), whose sum is σ = 653274960. Its totient is φ = 283533696.

The previous prime is 438680867. The next prime is 438680927. The reversal of 438680871 is 178086834.

It is not a de Polignac number, because 438680871 - 2² = 438680867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438680861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33105 + ... + 44421.

It is an arithmetic number, because the mean of its divisors is an integer number (27219790).

Almost surely, 2^438680871 is an apocalyptic number.

438680871 is a deficient number, since it is larger than the sum of its proper divisors (214594089).

438680871 is a wasteful number, since it uses less digits than its factorization.

438680871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11455 (or 11452 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 438680871 is about 20944.7098571453. The cubic root of 438680871 is about 759.8296426799.

The spelling of 438680871 in words is "four hundred thirty-eight million, six hundred eighty thousand, eight hundred seventy-one".