395459540 has 48 divisors (see below), whose sum is σ = 999062400. Its totient is φ = 128449152.

The previous prime is 395459531. The next prime is 395459549. The reversal of 395459540 is 45954593.

It is an interprime number because it is at equal distance from previous prime (395459531) and next prime (395459549).

It is a junction number, because it is equal to n+sod(n) for n = 395459491 and 395459500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395459549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71675 + ... + 76994.

It is an arithmetic number, because the mean of its divisors is an integer number (20813800).

Almost surely, 2^395459540 is an apocalyptic number.

It is an amenable number.

395459540 is an abundant number, since it is smaller than the sum of its proper divisors (603602860).

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

395459540 is a wasteful number, since it uses less digits than its factorization.

395459540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148704 (or 148702 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 44.

The square root of 395459540 is about 19886.1645371851. The cubic root of 395459540 is about 734.0078179271.

The spelling of 395459540 in words is "three hundred ninety-five million, four hundred fifty-nine thousand, five hundred forty".