406427384 has 48 divisors (see below), whose sum is σ = 851481960. Its totient is φ = 181684800.

The previous prime is 406427363. The next prime is 406427393. The reversal of 406427384 is 483724604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55607 + ... + 62489.

Almost surely, 2^406427384 is an apocalyptic number.

406427384 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406427384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425740980).

406427384 is an abundant number, since it is smaller than the sum of its proper divisors (445054576).

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

406427384 is a wasteful number, since it uses less digits than its factorization.

406427384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972 (or 6957 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 406427384 is about 20160.0442459832. The cubic root of 406427384 is about 740.7317961658.

The spelling of 406427384 in words is "four hundred six million, four hundred twenty-seven thousand, three hundred eighty-four".