400673111 has 4 divisors (see below), whose sum is σ = 411502152. Its totient is φ = 389844072.

The previous prime is 400673107. The next prime is 400673113. The reversal of 400673111 is 111376004.

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

It is a cyclic number.

It is not a de Polignac number, because 400673111 - 2² = 400673107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400673113) 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, 5414465 + ... + 5414538.

It is an arithmetic number, because the mean of its divisors is an integer number (102875538).

Almost surely, 2^400673111 is an apocalyptic number.

400673111 is a deficient number, since it is larger than the sum of its proper divisors (10829041).

400673111 is a wasteful number, since it uses less digits than its factorization.

400673111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10829040.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 400673111 is about 20016.8207015999. The cubic root of 400673111 is about 737.2193618051.

The spelling of 400673111 in words is "four hundred million, six hundred seventy-three thousand, one hundred eleven".