406730 has 16 divisors (see below), whose sum is σ = 741960. Its totient is φ = 160512.

The previous prime is 406729. The next prime is 406739. The reversal of 406730 is 37604.

It can be written as a sum of positive squares in 4 ways, for example, as 337561 + 69169 = 581^2 + 263^2 .

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (406739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662 + ... + 1118.

2⁴⁰⁶⁷³⁰ is an apocalyptic number.

406730 is a deficient number, since it is larger than the sum of its proper divisors (335230).

406730 is a wasteful number, since it uses less digits than its factorization.

406730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 406730 is about 637.7538710192. The cubic root of 406730 is about 74.0915594216.

The spelling of 406730 in words is "four hundred six thousand, seven hundred thirty".