397544448 has 264 divisors, whose sum is σ = 1306804800. Its totient is φ = 106831872.

The previous prime is 397544437. The next prime is 397544531. The reversal of 397544448 is 844445793.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 397544397 and 397544406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2859963 + ... + 2860101.

Almost surely, 2^397544448 is an apocalyptic number.

397544448 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397544448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653402400).

397544448 is an abundant number, since it is smaller than the sum of its proper divisors (909260352).

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

397544448 is a wasteful number, since it uses less digits than its factorization.

397544448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 170 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The square root of 397544448 is about 19938.5166950804. The cubic root of 397544448 is about 735.2954821024.

The spelling of 397544448 in words is "three hundred ninety-seven million, five hundred forty-four thousand, four hundred forty-eight".