400926 has 8 divisors (see below), whose sum is σ = 801864. Its totient is φ = 133640.

The previous prime is 400903. The next prime is 400927. The reversal of 400926 is 629004.

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

400926 is an admirable number.

It is a super-3 number, since 3×400926³ = 193336529295668328, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 400926.

It is not an unprimeable number, because it can be changed into a prime (400927) by changing a digit.

400926 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33405 + ... + 33416.

It is an arithmetic number, because the mean of its divisors is an integer number (100233).

2⁴⁰⁰⁹²⁶ is an apocalyptic number.

400926 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.

400926 is a wasteful number, since it uses less digits than its factorization.

400926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66826.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 400926 is about 633.1871761178. The cubic root of 400926 is about 73.7374430407.

It can be divided in two parts, 400 and 926, that added together give a triangular number (1326 = T₅₁).

The spelling of 400926 in words is "four hundred thousand, nine hundred twenty-six".