399733948395 has 24 divisors (see below), whose sum is σ = 716764323600. Its totient is φ = 205840009536.

The previous prime is 399733948391. The next prime is 399733948421. The reversal of 399733948395 is 593849337993.

399733948395 is a `hidden beast` number, since 3 + 9 + 9 + 73 + 394 + 83 + 95 = 666.

It is not a de Polignac number, because 399733948395 - 2² = 399733948391 is a prime.

It is a super-4 number, since 4×399733948395⁴ (a number of 48 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (399733948391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153153465 + ... + 153156074.

It is an arithmetic number, because the mean of its divisors is an integer number (29865180150).

Almost surely, 2^399733948395 is an apocalyptic number.

399733948395 is a deficient number, since it is larger than the sum of its proper divisors (317030375205).

399733948395 is a wasteful number, since it uses less digits than its factorization.

399733948395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306309579 (or 306309576 counting only the distinct ones).

The product of its digits is 595213920, while the sum is 72.

The spelling of 399733948395 in words is "three hundred ninety-nine billion, seven hundred thirty-three million, nine hundred forty-eight thousand, three hundred ninety-five".