400274 has 8 divisors (see below), whose sum is σ = 686208. Its totient is φ = 171540.

The previous prime is 400261. The next prime is 400277. The reversal of 400274 is 472004.

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

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400277) 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, 14282 + ... + 14309.

It is an arithmetic number, because the mean of its divisors is an integer number (85776).

2⁴⁰⁰²⁷⁴ is an apocalyptic number.

400274 is a deficient number, since it is larger than the sum of its proper divisors (285934).

400274 is a wasteful number, since it uses less digits than its factorization.

400274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28600.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 400274 is about 632.6721109706. The cubic root of 400274 is about 73.6974498767.

Adding to 400274 its reverse (472004), we get a palindrome (872278).

The spelling of 400274 in words is "four hundred thousand, two hundred seventy-four", and thus it is an iban number.