395899380 has 48 divisors (see below), whose sum is σ = 1231688640. Its totient is φ = 105573024.

The previous prime is 395899379. The next prime is 395899393. The reversal of 395899380 is 83998593.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366034 + ... + 367113.

It is an arithmetic number, because the mean of its divisors is an integer number (25660180).

Almost surely, 2^395899380 is an apocalyptic number.

395899380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

395899380 is an abundant number, since it is smaller than the sum of its proper divisors (835789260).

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

395899380 is a wasteful number, since it uses less digits than its factorization.

395899380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733165 (or 733157 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 395899380 is about 19897.2204088913. The cubic root of 395899380 is about 734.2798443904.

The spelling of 395899380 in words is "three hundred ninety-five million, eight hundred ninety-nine thousand, three hundred eighty".