397226774 has 8 divisors (see below), whose sum is σ = 680960208. Its totient is φ = 170240040.

The previous prime is 397226747. The next prime is 397226779. The reversal of 397226774 is 477622793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397226779) 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, 14186657 + ... + 14186684.

It is an arithmetic number, because the mean of its divisors is an integer number (85120026).

Almost surely, 2^397226774 is an apocalyptic number.

397226774 is a deficient number, since it is larger than the sum of its proper divisors (283733434).

397226774 is a wasteful number, since it uses less digits than its factorization.

397226774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28373350.

The product of its digits is 889056, while the sum is 47.

The square root of 397226774 is about 19930.5487631425. The cubic root of 397226774 is about 735.0995740272.

The spelling of 397226774 in words is "three hundred ninety-seven million, two hundred twenty-six thousand, seven hundred seventy-four".