395128146 has 32 divisors (see below), whose sum is σ = 903813120. Its totient is φ = 112810896.

The previous prime is 395128099. The next prime is 395128147. The reversal of 395128146 is 641821593.

It is a super-2 number, since 2×395128146² = 312252503522794632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (395128147) 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, 75895 + ... + 80933.

It is an arithmetic number, because the mean of its divisors is an integer number (28244160).

Almost surely, 2^395128146 is an apocalyptic number.

395128146 is an abundant number, since it is smaller than the sum of its proper divisors (508684974).

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

395128146 is a wasteful number, since it uses less digits than its factorization.

395128146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918.

The product of its digits is 51840, while the sum is 39.

The square root of 395128146 is about 19877.8305154260. The cubic root of 395128146 is about 733.8027284550.

The spelling of 395128146 in words is "three hundred ninety-five million, one hundred twenty-eight thousand, one hundred forty-six".