395507982 has 16 divisors (see below), whose sum is σ = 816532992. Its totient is φ = 127583160.

The previous prime is 395507953. The next prime is 395507989. The reversal of 395507982 is 289705593.

It is a happy number.

It is a super-3 number, since 3×395507982³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395507989) 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, 1063008 + ... + 1063379.

It is an arithmetic number, because the mean of its divisors is an integer number (51033312).

Almost surely, 2^395507982 is an apocalyptic number.

395507982 is an abundant number, since it is smaller than the sum of its proper divisors (421025010).

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

395507982 is a wasteful number, since it uses less digits than its factorization.

395507982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126423.

The product of its (nonzero) digits is 680400, while the sum is 48.

The square root of 395507982 is about 19887.3824823681. The cubic root of 395507982 is about 734.0377875796.

The spelling of 395507982 in words is "three hundred ninety-five million, five hundred seven thousand, nine hundred eighty-two".