395012580 has 96 divisors (see below), whose sum is σ = 1160780544. Its totient is φ = 100176384.

The previous prime is 395012543. The next prime is 395012599. The reversal of 395012580 is 85210593.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271134 + ... + 272586.

It is an arithmetic number, because the mean of its divisors is an integer number (12091464).

Almost surely, 2^395012580 is an apocalyptic number.

395012580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395012580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580390272).

395012580 is an abundant number, since it is smaller than the sum of its proper divisors (765767964).

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

395012580 is a wasteful number, since it uses less digits than its factorization.

395012580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 395012580 is about 19874.9233960788. The cubic root of 395012580 is about 733.7311812739.

The spelling of 395012580 in words is "three hundred ninety-five million, twelve thousand, five hundred eighty".