4256399162 has 4 divisors (see below), whose sum is σ = 6384598746. Its totient is φ = 2128199580.

The previous prime is 4256399143. The next prime is 4256399167. The reversal of 4256399162 is 2619936524.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 4217073721 + 39325441 = 64939^2 + 6271^2 .

It is not an unprimeable number, because it can be changed into a prime (4256399167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064099789 + ... + 1064099792.

Almost surely, 2^4256399162 is an apocalyptic number.

4256399162 is a deficient number, since it is larger than the sum of its proper divisors (2128199584).

4256399162 is a wasteful number, since it uses less digits than its factorization.

4256399162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128199583.

The product of its digits is 699840, while the sum is 47.

The square root of 4256399162 is about 65241.0849235357. The cubic root of 4256399162 is about 1620.6184655306.

The spelling of 4256399162 in words is "four billion, two hundred fifty-six million, three hundred ninety-nine thousand, one hundred sixty-two".