397293448 has 16 divisors (see below), whose sum is σ = 755130780. Its totient is φ = 195925248.

The previous prime is 397293431. The next prime is 397293487. The reversal of 397293448 is 844392793.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 378613764 + 18679684 = 19458^2 + 4322^2 .

It is a super-4 number, since 4×397293448⁴ (a number of 35 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339565 + ... + 340732.

Almost surely, 2^397293448 is an apocalyptic number.

It is an amenable number.

397293448 is a deficient number, since it is larger than the sum of its proper divisors (357837332).

397293448 is a wasteful number, since it uses less digits than its factorization.

397293448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680376 (or 680372 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 397293448 is about 19932.2213513697. The cubic root of 397293448 is about 735.1407002303.

The spelling of 397293448 in words is "three hundred ninety-seven million, two hundred ninety-three thousand, four hundred forty-eight".