395645720 has 32 divisors (see below), whose sum is σ = 903495600. Its totient is φ = 155895168.

The previous prime is 395645717. The next prime is 395645729. The reversal of 395645720 is 27546593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395645729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71135 + ... + 76494.

Almost surely, 2^395645720 is an apocalyptic number.

It is an amenable number.

395645720 is an abundant number, since it is smaller than the sum of its proper divisors (507849880).

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

395645720 is a wasteful number, since it uses less digits than its factorization.

395645720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147707 (or 147703 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 395645720 is about 19890.8451303609. The cubic root of 395645720 is about 734.1229886938.

The spelling of 395645720 in words is "three hundred ninety-five million, six hundred forty-five thousand, seven hundred twenty".