400000101 has 8 divisors (see below), whose sum is σ = 533611680. Its totient is φ = 266527632.

The previous prime is 400000091. The next prime is 400000109. The reversal of 400000101 is 101000004.

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

It is not a de Polignac number, because 400000101 - 2¹³ = 399991909 is a prime.

400000101 is a modest number, since divided by 101 gives 4 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 400000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400000109) 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, 27871 + ... + 39708.

It is an arithmetic number, because the mean of its divisors is an integer number (66701460).

Almost surely, 2^400000101 is an apocalyptic number.

It is an amenable number.

400000101 is a deficient number, since it is larger than the sum of its proper divisors (133611579).

400000101 is a wasteful number, since it uses less digits than its factorization.

400000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69555.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 400000101 is about 20000.0025249998. The cubic root of 400000101 is about 736.8063617426.

Adding to 400000101 its reverse (101000004), we get a palindrome (501000105).

The spelling of 400000101 in words is "four hundred million, one hundred one", and thus it is an aban number.