395740745 has 4 divisors (see below), whose sum is σ = 474888900. Its totient is φ = 316592592.

The previous prime is 395740717. The next prime is 395740769. The reversal of 395740745 is 547047593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547047593 = 1093 ⋅500501.

It can be written as a sum of positive squares in 2 ways, for example, as 121242121 + 274498624 = 11011^2 + 16568^2 .

It is a cyclic number.

It is not a de Polignac number, because 395740745 - 2²⁸ = 127305289 is a prime.

It is a super-2 number, since 2×395740745² = 313221474506310050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395740696 and 395740705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39574070 + ... + 39574079.

It is an arithmetic number, because the mean of its divisors is an integer number (118722225).

Almost surely, 2^395740745 is an apocalyptic number.

It is an amenable number.

395740745 is a deficient number, since it is larger than the sum of its proper divisors (79148155).

395740745 is an equidigital number, since it uses as much as digits as its factorization.

395740745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79148154.

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 395740745 is about 19893.2336486555. The cubic root of 395740745 is about 734.1817571402.

The spelling of 395740745 in words is "three hundred ninety-five million, seven hundred forty thousand, seven hundred forty-five".