406474 has 8 divisors (see below), whose sum is σ = 624708. Its totient is φ = 198240.

The previous prime is 406447. The next prime is 406481. The reversal of 406474 is 474604.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 403225 + 3249 = 635^2 + 57^2 .

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

It is a super-2 number, since 2×406474² = 330442225352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397 + ... + 2560.

2⁴⁰⁶⁴⁷⁴ is an apocalyptic number.

406474 is a deficient number, since it is larger than the sum of its proper divisors (218234).

406474 is a wasteful number, since it uses less digits than its factorization.

406474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 406474 is about 637.5531350405. The cubic root of 406474 is about 74.0760114987.

The spelling of 406474 in words is "four hundred six thousand, four hundred seventy-four".