406283643 has 12 divisors (see below), whose sum is σ = 602715568. Its totient is φ = 263535120.

The previous prime is 406283611. The next prime is 406283653. The reversal of 406283643 is 346382604.

It is a happy number.

406283643 is a `hidden beast` number, since 4 + 0 + 6 + 2 + 8 + 3 + 643 = 666.

It is not a de Polignac number, because 406283643 - 2⁵ = 406283611 is a prime.

It is a super-3 number, since 3×406283643³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406283598 and 406283607.

It is not an unprimeable number, because it can be changed into a prime (406283653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609703 + ... + 610368.

Almost surely, 2^406283643 is an apocalyptic number.

406283643 is a deficient number, since it is larger than the sum of its proper divisors (196431925).

406283643 is a wasteful number, since it uses less digits than its factorization.

406283643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220114 (or 1220111 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 406283643 is about 20156.4789335836. The cubic root of 406283643 is about 740.6444611027.

The spelling of 406283643 in words is "four hundred six million, two hundred eighty-three thousand, six hundred forty-three".