400302023 has 8 divisors (see below), whose sum is σ = 436841616. Its totient is φ = 363787200.

The previous prime is 400301971. The next prime is 400302053. The reversal of 400302023 is 320203004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400302023 - 2⁸ = 400301767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400301989 and 400302007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400302053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49163 + ... + 56723.

It is an arithmetic number, because the mean of its divisors is an integer number (54605202).

Almost surely, 2^400302023 is an apocalyptic number.

400302023 is a deficient number, since it is larger than the sum of its proper divisors (36539593).

400302023 is a wasteful number, since it uses less digits than its factorization.

400302023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12385.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 400302023 is about 20007.5491502583. The cubic root of 400302023 is about 736.9916967816.

Adding to 400302023 its reverse (320203004), we get a palindrome (720505027).

The spelling of 400302023 in words is "four hundred million, three hundred two thousand, twenty-three".