400936 has 16 divisors (see below), whose sum is σ = 784800. Its totient is φ = 191664.

The previous prime is 400931. The next prime is 400943. The reversal of 400936 is 639004.

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 in 3 ways as a sum of consecutive naturals, for example, 906 + ... + 1273.

It is an arithmetic number, because the mean of its divisors is an integer number (49050).

2⁴⁰⁰⁹³⁶ is an apocalyptic number.

400936 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

400936 is a deficient number, since it is larger than the sum of its proper divisors (383864).

400936 is a wasteful number, since it uses less digits than its factorization.

400936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208 (or 2204 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 400936 is about 633.1950726277. The cubic root of 400936 is about 73.7380560951.

The spelling of 400936 in words is "four hundred thousand, nine hundred thirty-six".