400473 has 6 divisors (see below), whose sum is σ = 578474. Its totient is φ = 266976.

The previous prime is 400471. The next prime is 400481. The reversal of 400473 is 374004.

It can be written as a sum of positive squares in only one way, i.e., 363609 + 36864 = 603^2 + 192^2 .

It is not a de Polignac number, because 400473 - 2¹ = 400471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22240 + ... + 22257.

2⁴⁰⁰⁴⁷³ is an apocalyptic number.

It is an amenable number.

400473 is a deficient number, since it is larger than the sum of its proper divisors (178001).

400473 is a wasteful number, since it uses less digits than its factorization.

400473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44503 (or 44500 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 400473 is about 632.8293608865. The cubic root of 400473 is about 73.7096609811.

Adding to 400473 its reverse (374004), we get a palindrome (774477).

It can be divided in two parts, 4004 and 73, that multiplied together give a palindrome (292292).

The spelling of 400473 in words is "four hundred thousand, four hundred seventy-three", and thus it is an iban number.