395097243 has 16 divisors (see below), whose sum is σ = 557237760. Its totient is φ = 248491584.

The previous prime is 395097239. The next prime is 395097253. The reversal of 395097243 is 342790593.

It is not a de Polignac number, because 395097243 - 2² = 395097239 is a prime.

It is a super-2 number, since 2×395097243² = 312203662852402098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395097195 and 395097204.

It is not an unprimeable number, because it can be changed into a prime (395097233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34183 + ... + 44256.

It is an arithmetic number, because the mean of its divisors is an integer number (34827360).

Almost surely, 2^395097243 is an apocalyptic number.

395097243 is a deficient number, since it is larger than the sum of its proper divisors (162140517).

395097243 is a wasteful number, since it uses less digits than its factorization.

395097243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78538.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 395097243 is about 19877.0531769677. The cubic root of 395097243 is about 733.7835977020.

The spelling of 395097243 in words is "three hundred ninety-five million, ninety-seven thousand, two hundred forty-three".