400104346 has 4 divisors (see below), whose sum is σ = 600156522. Its totient is φ = 200052172.

The previous prime is 400104227. The next prime is 400104407. The reversal of 400104346 is 643401004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 389470225 + 10634121 = 19735^2 + 3261^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 100026085 + ... + 100026088.

Almost surely, 2^400104346 is an apocalyptic number.

400104346 is a deficient number, since it is larger than the sum of its proper divisors (200052176).

400104346 is a wasteful number, since it uses less digits than its factorization.

400104346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200052175.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 400104346 is about 20002.6084798958. The cubic root of 400104346 is about 736.8703631496.

The spelling of 400104346 in words is "four hundred million, one hundred four thousand, three hundred forty-six".