395500440 has 64 divisors (see below), whose sum is σ = 1187861760. Its totient is φ = 105345920.

The previous prime is 395500421. The next prime is 395500477. The reversal of 395500440 is 44005593.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 395500398 and 395500407.

It is a congruent number.

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, 162835 + ... + 165245.

It is an arithmetic number, because the mean of its divisors is an integer number (18560340).

Almost surely, 2^395500440 is an apocalyptic number.

395500440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

395500440 is an abundant number, since it is smaller than the sum of its proper divisors (792361320).

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

395500440 is a wasteful number, since it uses less digits than its factorization.

395500440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792 (or 3788 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 395500440 is about 19887.1928637503. The cubic root of 395500440 is about 734.0331217250.

The spelling of 395500440 in words is "three hundred ninety-five million, five hundred thousand, four hundred forty".