406451332 has 24 divisors (see below), whose sum is σ = 822701376. Its totient is φ = 172093728.

The previous prime is 406451293. The next prime is 406451359. The reversal of 406451332 is 233154604.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 406451332.

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 7 ways as a sum of consecutive naturals, for example, 85123 + ... + 89770.

It is an arithmetic number, because the mean of its divisors is an integer number (34279224).

Almost surely, 2^406451332 is an apocalyptic number.

It is an amenable number.

406451332 is an abundant number, since it is smaller than the sum of its proper divisors (416250044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406451332 is a wasteful number, since it uses less digits than its factorization.

406451332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174987 (or 174985 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 406451332 is about 20160.6381843433. The cubic root of 406451332 is about 740.7463446414.

The spelling of 406451332 in words is "four hundred six million, four hundred fifty-one thousand, three hundred thirty-two".