400023201 has 8 divisors (see below), whose sum is σ = 534758400. Its totient is φ = 265985072.

The previous prime is 400023181. The next prime is 400023223. The reversal of 400023201 is 102320004.

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 400023201 - 2²⁷ = 265805473 is a prime.

It is a super-4 number, since 4×400023201⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (400023401) 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, 172926 + ... + 175223.

It is an arithmetic number, because the mean of its divisors is an integer number (66844800).

Almost surely, 2^400023201 is an apocalyptic number.

It is an amenable number.

400023201 is a deficient number, since it is larger than the sum of its proper divisors (134735199).

400023201 is a wasteful number, since it uses less digits than its factorization.

400023201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348535.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 400023201 is about 20000.5800165895. The cubic root of 400023201 is about 736.8205449885.

Adding to 400023201 its reverse (102320004), we get a palindrome (502343205).

The spelling of 400023201 in words is "four hundred million, twenty-three thousand, two hundred one".