406489480 has 32 divisors (see below), whose sum is σ = 918267840. Its totient is φ = 161944000.

The previous prime is 406489471. The next prime is 406489481. The reversal of 406489480 is 84984604.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (406489481) 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 7 ways as a sum of consecutive naturals, for example, 10204 + ... + 30283.

It is an arithmetic number, because the mean of its divisors is an integer number (28695870).

Almost surely, 2^406489480 is an apocalyptic number.

406489480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

406489480 is an abundant number, since it is smaller than the sum of its proper divisors (511778360).

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

406489480 is a wasteful number, since it uses less digits than its factorization.

406489480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40749 (or 40745 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 406489480 is about 20161.5842631476. The cubic root of 406489480 is about 740.7695184758.

The spelling of 406489480 in words is "four hundred six million, four hundred eighty-nine thousand, four hundred eighty".