406225545 has 16 divisors (see below), whose sum is σ = 709048512. Its totient is φ = 196957760.

The previous prime is 406225543. The next prime is 406225579. The reversal of 406225545 is 545522604.

It is not a de Polignac number, because 406225545 - 2¹ = 406225543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (406225543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230822 + ... + 1231151.

It is an arithmetic number, because the mean of its divisors is an integer number (44315532).

Almost surely, 2^406225545 is an apocalyptic number.

It is an amenable number.

406225545 is a deficient number, since it is larger than the sum of its proper divisors (302822967).

406225545 is a wasteful number, since it uses less digits than its factorization.

406225545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461992.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 406225545 is about 20155.0377077295. The cubic root of 406225545 is about 740.6091557080.

The spelling of 406225545 in words is "four hundred six million, two hundred twenty-five thousand, five hundred forty-five".