395494820 has 48 divisors (see below), whose sum is σ = 951646080. Its totient is φ = 135247104.

The previous prime is 395494819. The next prime is 395494831. The reversal of 395494820 is 28494593.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53807 + ... + 60713.

It is an arithmetic number, because the mean of its divisors is an integer number (19825960).

Almost surely, 2^395494820 is an apocalyptic number.

It is an amenable number.

395494820 is an abundant number, since it is smaller than the sum of its proper divisors (556151260).

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

395494820 is a wasteful number, since it uses less digits than its factorization.

395494820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332 (or 7330 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 395494820 is about 19887.0515662830. The cubic root of 395494820 is about 734.0296448762.

The spelling of 395494820 in words is "three hundred ninety-five million, four hundred ninety-four thousand, eight hundred twenty".