397409080794880 has 1152 divisors, whose sum is σ = 1306788545986560. Its totient is φ = 111969435648000.

The previous prime is 397409080794853. The next prime is 397409080794893. The reversal of 397409080794880 is 88497080904793.

It is a junction number, because it is equal to n+sod(n) for n = 397409080794797 and 397409080794806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9280683870 + ... + 9280726690.

It is an arithmetic number, because the mean of its divisors is an integer number (1134365057280).

Almost surely, 2^{397409080794880} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397409080794880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653394272993280).

397409080794880 is an abundant number, since it is smaller than the sum of its proper divisors (909379465191680).

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

397409080794880 is a wasteful number, since it uses less digits than its factorization.

397409080794880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43097 (or 43083 counting only the distinct ones).

The product of its (nonzero) digits is 877879296, while the sum is 76.

The spelling of 397409080794880 in words is "three hundred ninety-seven trillion, four hundred nine billion, eighty million, seven hundred ninety-four thousand, eight hundred eighty".