395380490 has 16 divisors (see below), whose sum is σ = 736226280. Its totient is φ = 152698560.

The previous prime is 395380487. The next prime is 395380499. The reversal of 395380490 is 94083593.

It can be written as a sum of positive squares in 4 ways, for example, as 181899169 + 213481321 = 13487^2 + 14611^2 .

It is not an unprimeable number, because it can be changed into a prime (395380499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681401 + ... + 681980.

Almost surely, 2^395380490 is an apocalyptic number.

395380490 is a deficient number, since it is larger than the sum of its proper divisors (340845790).

395380490 is a wasteful number, since it uses less digits than its factorization.

395380490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363417.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 395380490 is about 19884.1768750934. The cubic root of 395380490 is about 733.9589067417.

The spelling of 395380490 in words is "three hundred ninety-five million, three hundred eighty thousand, four hundred ninety".