400029101 has 8 divisors (see below), whose sum is σ = 405207360. Its totient is φ = 394866208.

The previous prime is 400029029. The next prime is 400029109. The reversal of 400029101 is 101920004.

It is a happy number.

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 400029101 - 2¹⁰ = 400028077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400029101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400029109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54110 + ... + 61056.

It is an arithmetic number, because the mean of its divisors is an integer number (50650920).

Almost surely, 2^400029101 is an apocalyptic number.

It is an amenable number.

400029101 is a deficient number, since it is larger than the sum of its proper divisors (5178259).

400029101 is an equidigital number, since it uses as much as digits as its factorization.

400029101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7683.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 400029101 is about 20000.7275117682. The cubic root of 400029101 is about 736.8241674616.

Adding to 400029101 its reverse (101920004), we get a palindrome (501949105).

The spelling of 400029101 in words is "four hundred million, twenty-nine thousand, one hundred one".