406745252 has 12 divisors (see below), whose sum is σ = 714339276. Its totient is φ = 202648320.

The previous prime is 406745243. The next prime is 406745279. The reversal of 406745252 is 252547604.

It can be written as a sum of positive squares in 2 ways, for example, as 307862116 + 98883136 = 17546^2 + 9944^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179813 + ... + 182060.

It is an arithmetic number, because the mean of its divisors is an integer number (59528273).

Almost surely, 2^406745252 is an apocalyptic number.

It is an amenable number.

406745252 is a deficient number, since it is larger than the sum of its proper divisors (307594024).

406745252 is a wasteful number, since it uses less digits than its factorization.

406745252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362158 (or 362156 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 406745252 is about 20167.9263187865. The cubic root of 406745252 is about 740.9248553175.

The spelling of 406745252 in words is "four hundred six million, seven hundred forty-five thousand, two hundred fifty-two".