397126548 has 144 divisors (see below), whose sum is σ = 1243097856. Its totient is φ = 104094720.

The previous prime is 397126507. The next prime is 397126549. The reversal of 397126548 is 845621793.

397126548 is a `hidden beast` number, since 3 + 97 + 12 + 6 + 548 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397126549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 789265 + ... + 789767.

It is an arithmetic number, because the mean of its divisors is an integer number (8632624).

Almost surely, 2^397126548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397126548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621548928).

397126548 is an abundant number, since it is smaller than the sum of its proper divisors (845971308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397126548 is a wasteful number, since it uses less digits than its factorization.

397126548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 769 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 397126548 is about 19928.0342231741. The cubic root of 397126548 is about 735.0377434456.

The spelling of 397126548 in words is "three hundred ninety-seven million, one hundred twenty-six thousand, five hundred forty-eight".