399849301 has 4 divisors (see below), whose sum is σ = 400395532. Its totient is φ = 399303072.

The previous prime is 399849271. The next prime is 399849311. The reversal of 399849301 is 103948993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103948993 = 2153 ⋅48281.

It can be written as a sum of positive squares in 2 ways, for example, as 218300625 + 181548676 = 14775^2 + 13474^2 .

It is a cyclic number.

It is not a de Polignac number, because 399849301 - 2⁷ = 399849173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399849311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272016 + ... + 273481.

It is an arithmetic number, because the mean of its divisors is an integer number (100098883).

Almost surely, 2^399849301 is an apocalyptic number.

It is an amenable number.

399849301 is a deficient number, since it is larger than the sum of its proper divisors (546231).

399849301 is an equidigital number, since it uses as much as digits as its factorization.

399849301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546230.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 399849301 is about 19996.2321700864. The cubic root of 399849301 is about 736.7137581284.

The spelling of 399849301 in words is "three hundred ninety-nine million, eight hundred forty-nine thousand, three hundred one".