395421408 has 36 divisors (see below), whose sum is σ = 1124480448. Its totient is φ = 131807040.

The previous prime is 395421401. The next prime is 395421413. The reversal of 395421408 is 804124593.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395421401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 686208 + ... + 686783.

It is an arithmetic number, because the mean of its divisors is an integer number (31235568).

Almost surely, 2^395421408 is an apocalyptic number.

It is an amenable number.

395421408 is an abundant number, since it is smaller than the sum of its proper divisors (729059040).

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

395421408 is a wasteful number, since it uses less digits than its factorization.

395421408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373007 (or 1372996 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 395421408 is about 19885.2057570446. The cubic root of 395421408 is about 733.9842250493.

The spelling of 395421408 in words is "three hundred ninety-five million, four hundred twenty-one thousand, four hundred eight".