397229316830 has 16 divisors (see below), whose sum is σ = 738077698944. Its totient is φ = 153766187040.

The previous prime is 397229316829. The next prime is 397229316859. The reversal of 397229316830 is 38613922793.

It is a super-2 number, since 2×397229316830² (a number of 24 digits) contains 22 as substring.

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, 640692137 + ... + 640692756.

It is an arithmetic number, because the mean of its divisors is an integer number (46129856184).

Almost surely, 2^397229316830 is an apocalyptic number.

397229316830 is a deficient number, since it is larger than the sum of its proper divisors (340848382114).

397229316830 is a wasteful number, since it uses less digits than its factorization.

397229316830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281384931.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 397229316830 in words is "three hundred ninety-seven billion, two hundred twenty-nine million, three hundred sixteen thousand, eight hundred thirty".