406047744 has 66 divisors (see below), whose sum is σ = 1172480660. Its totient is φ = 135346176.

The previous prime is 406047743. The next prime is 406047751. The reversal of 406047744 is 447740604.

406047744 is a `hidden beast` number, since 4 + 0 + 604 + 7 + 7 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 406047699 and 406047708.

It is not an unprimeable number, because it can be changed into a prime (406047743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12814 + ... + 31245.

Almost surely, 2^406047744 is an apocalyptic number.

It is an amenable number.

406047744 is an abundant number, since it is smaller than the sum of its proper divisors (766432916).

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

406047744 is a wasteful number, since it uses less digits than its factorization.

406047744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44085 (or 44064 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 406047744 is about 20150.6263922490. The cubic root of 406047744 is about 740.5010874467.

The spelling of 406047744 in words is "four hundred six million, forty-seven thousand, seven hundred forty-four".