395061728422 has 4 divisors (see below), whose sum is σ = 592592592636. Its totient is φ = 197530864210.

The previous prime is 395061728371. The next prime is 395061728461. The reversal of 395061728422 is 224827160593.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×395061728422² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98765432104 + ... + 98765432107.

It is an arithmetic number, because the mean of its divisors is an integer number (148148148159).

It is a 2-persistent number, because it is pandigital, and so is 2⋅395061728422 = 790123456844, but 3⋅395061728422 = 1185185185266 is not.

Almost surely, 2^395061728422 is an apocalyptic number.

395061728422 is a deficient number, since it is larger than the sum of its proper divisors (197530864214).

395061728422 is a wasteful number, since it uses less digits than its factorization.

395061728422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197530864213.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 395061728422 in words is "three hundred ninety-five billion, sixty-one million, seven hundred twenty-eight thousand, four hundred twenty-two".