397480147281 has 24 divisors (see below), whose sum is σ = 656227825344. Its totient is φ = 227107239840.

The previous prime is 397480147241. The next prime is 397480147289. The reversal of 397480147281 is 182741084793.

397480147281 is a `hidden beast` number, since 3 + 9 + 7 + 480 + 14 + 72 + 81 = 666.

It is not a de Polignac number, because 397480147281 - 2⁷ = 397480147153 is a prime.

It is a super-2 number, since 2×397480147281² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (397480147289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265555 + ... + 930311.

It is an arithmetic number, because the mean of its divisors is an integer number (27342826056).

Almost surely, 2^397480147281 is an apocalyptic number.

It is an amenable number.

397480147281 is a deficient number, since it is larger than the sum of its proper divisors (258747678063).

397480147281 is a wasteful number, since it uses less digits than its factorization.

397480147281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674261 (or 674258 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 397480147281 in words is "three hundred ninety-seven billion, four hundred eighty million, one hundred forty-seven thousand, two hundred eighty-one".