406859445 has 24 divisors (see below), whose sum is σ = 742341600. Its totient is φ = 205570656.

The previous prime is 406859423. The next prime is 406859459. The reversal of 406859445 is 544958604.

It is not a de Polignac number, because 406859445 - 2¹³ = 406851253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 406859445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237075 + ... + 238784.

It is an arithmetic number, because the mean of its divisors is an integer number (30930900).

Almost surely, 2^406859445 is an apocalyptic number.

406859445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

406859445 is a deficient number, since it is larger than the sum of its proper divisors (335482155).

406859445 is a wasteful number, since it uses less digits than its factorization.

406859445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475889 (or 475886 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 406859445 is about 20170.7571746824. The cubic root of 406859445 is about 740.9941866044.

The spelling of 406859445 in words is "four hundred six million, eight hundred fifty-nine thousand, four hundred forty-five".