401999348 has 12 divisors (see below), whose sum is σ = 703644900. Its totient is φ = 200957952.

The previous prime is 401999347. The next prime is 401999369. The reversal of 401999348 is 843999104.

It can be written as a sum of positive squares in 2 ways, for example, as 244547044 + 157452304 = 15638^2 + 12548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401999347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23540 + ... + 36852.

It is an arithmetic number, because the mean of its divisors is an integer number (58637075).

Almost surely, 2^401999348 is an apocalyptic number.

It is an amenable number.

401999348 is a deficient number, since it is larger than the sum of its proper divisors (301645552).

401999348 is a wasteful number, since it uses less digits than its factorization.

401999348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20866 (or 20864 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 401999348 is about 20049.9213963547. The cubic root of 401999348 is about 738.0318702071.

The spelling of 401999348 in words is "four hundred one million, nine hundred ninety-nine thousand, three hundred forty-eight".