397058738940 has 288 divisors, whose sum is σ = 1261744323840. Its totient is φ = 104808038400.

The previous prime is 397058738893. The next prime is 397058738957. The reversal of 397058738940 is 49837850793.

397058738940 is a `hidden beast` number, since 3 + 9 + 7 + 0 + 587 + 3 + 8 + 9 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 489591135 + ... + 489591945.

It is an arithmetic number, because the mean of its divisors is an integer number (4381056680).

Almost surely, 2^397058738940 is an apocalyptic number.

397058738940 is a gapful number since it is divisible by the number (30) 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 397058738940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630872161920).

397058738940 is an abundant number, since it is smaller than the sum of its proper divisors (864685584900).

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

397058738940 is a wasteful number, since it uses less digits than its factorization.

397058738940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 397058738940 in words is "three hundred ninety-seven billion, fifty-eight million, seven hundred thirty-eight thousand, nine hundred forty".