438148487 has 8 divisors (see below), whose sum is σ = 514274976. Its totient is φ = 365405472.

The previous prime is 438148483. The next prime is 438148511. The reversal of 438148487 is 784841834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 438148487 - 2² = 438148483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438148481) 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, 845588 + ... + 846105.

It is an arithmetic number, because the mean of its divisors is an integer number (64284372).

Almost surely, 2^438148487 is an apocalyptic number.

438148487 is a deficient number, since it is larger than the sum of its proper divisors (76126489).

438148487 is a wasteful number, since it uses less digits than its factorization.

438148487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691737.

The product of its digits is 688128, while the sum is 47.

The square root of 438148487 is about 20931.9967274983. The cubic root of 438148487 is about 759.5221413167.

The spelling of 438148487 in words is "four hundred thirty-eight million, one hundred forty-eight thousand, four hundred eighty-seven".