400934 has 4 divisors (see below), whose sum is σ = 601404. Its totient is φ = 200466.

The previous prime is 400931. The next prime is 400943. The reversal of 400934 is 439004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100232 + ... + 100235.

It is an arithmetic number, because the mean of its divisors is an integer number (150351).

2⁴⁰⁰⁹³⁴ is an apocalyptic number.

400934 is a deficient number, since it is larger than the sum of its proper divisors (200470).

400934 is a wasteful number, since it uses less digits than its factorization.

400934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200469.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 400934 is about 633.1934933336. The cubic root of 400934 is about 73.7379334850.

Adding to 400934 its reverse (439004), we get a palindrome (839938).

The spelling of 400934 in words is "four hundred thousand, nine hundred thirty-four".