438280148 has 12 divisors (see below), whose sum is σ = 769016640. Its totient is φ = 218561112.

The previous prime is 438280147. The next prime is 438280153. The reversal of 438280148 is 841082834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438280147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143036 + ... + 146067.

It is an arithmetic number, because the mean of its divisors is an integer number (64084720).

Almost surely, 2^438280148 is an apocalyptic number.

It is an amenable number.

438280148 is a deficient number, since it is larger than the sum of its proper divisors (330736492).

438280148 is a wasteful number, since it uses less digits than its factorization.

438280148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289486 (or 289484 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 438280148 is about 20935.1414611891. The cubic root of 438280148 is about 759.5982109848.

The spelling of 438280148 in words is "four hundred thirty-eight million, two hundred eighty thousand, one hundred forty-eight".