397054438 has 16 divisors (see below), whose sum is σ = 683922240. Its totient is φ = 170980200.

The previous prime is 397054421. The next prime is 397054453. The reversal of 397054438 is 834450793.

It is a junction number, because it is equal to n+sod(n) for n = 397054394 and 397054403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474528 + ... + 475363.

It is an arithmetic number, because the mean of its divisors is an integer number (42745140).

Almost surely, 2^397054438 is an apocalyptic number.

397054438 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

397054438 is a deficient number, since it is larger than the sum of its proper divisors (286867802).

397054438 is a wasteful number, since it uses less digits than its factorization.

397054438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949923.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 397054438 is about 19926.2248807947. The cubic root of 397054438 is about 734.9932515153.

The spelling of 397054438 in words is "three hundred ninety-seven million, fifty-four thousand, four hundred thirty-eight".