400102134 has 8 divisors (see below), whose sum is σ = 800204280. Its totient is φ = 133367376.

The previous prime is 400102121. The next prime is 400102139. The reversal of 400102134 is 431201004.

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

400102134 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400102139) 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, 33341839 + ... + 33341850.

It is an arithmetic number, because the mean of its divisors is an integer number (100025535).

Almost surely, 2^400102134 is an apocalyptic number.

400102134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400102134 is a wasteful number, since it uses less digits than its factorization.

400102134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66683694.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 400102134 is about 20002.5531870309. The cubic root of 400102134 is about 736.8690052036.

Adding to 400102134 its reverse (431201004), we get a palindrome (831303138).

The spelling of 400102134 in words is "four hundred million, one hundred two thousand, one hundred thirty-four".