395499555040 has 48 divisors (see below), whose sum is σ = 945625172688. Its totient is φ = 156293794816.

The previous prime is 395499555023. The next prime is 395499555041. The reversal of 395499555040 is 40555994593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395499555041) 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, 14877517 + ... + 14904076.

It is an arithmetic number, because the mean of its divisors is an integer number (19700524431).

Almost surely, 2^395499555040 is an apocalyptic number.

It is an amenable number.

395499555040 is an abundant number, since it is smaller than the sum of its proper divisors (550125617648).

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

395499555040 is a wasteful number, since it uses less digits than its factorization.

395499555040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29781691 (or 29781683 counting only the distinct ones).

The product of its (nonzero) digits is 21870000, while the sum is 58.

The spelling of 395499555040 in words is "three hundred ninety-five billion, four hundred ninety-nine million, five hundred fifty-five thousand, forty".