395390650 has 12 divisors (see below), whose sum is σ = 735426702. Its totient is φ = 158156240.

The previous prime is 395390629. The next prime is 395390657. The reversal of 395390650 is 56093593.

It can be written as a sum of positive squares in 3 ways, for example, as 266636241 + 128754409 = 16329^2 + 11347^2 .

It is a super-2 number, since 2×395390650² = 312667532214845000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (395390657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3953857 + ... + 3953956.

Almost surely, 2^395390650 is an apocalyptic number.

395390650 is a deficient number, since it is larger than the sum of its proper divisors (340036052).

395390650 is a wasteful number, since it uses less digits than its factorization.

395390650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7907825 (or 7907820 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 40.

The square root of 395390650 is about 19884.4323529740. The cubic root of 395390650 is about 733.9651934780.

The spelling of 395390650 in words is "three hundred ninety-five million, three hundred ninety thousand, six hundred fifty".