406721767200 has 864 divisors, whose sum is σ = 1625595955200. Its totient is φ = 86272542720.

The previous prime is 406721767129. The next prime is 406721767211. The reversal of 406721767200 is 2767127604.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3202533537 + ... + 3202533663.

It is an arithmetic number, because the mean of its divisors is an integer number (1881476800).

Almost surely, 2^406721767200 is an apocalyptic number.

406721767200 is a gapful number since it is divisible by the number (40) 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 406721767200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (812797977600).

406721767200 is an abundant number, since it is smaller than the sum of its proper divisors (1218874188000).

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

406721767200 is a wasteful number, since it uses less digits than its factorization.

406721767200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 406721767200 in words is "four hundred six billion, seven hundred twenty-one million, seven hundred sixty-seven thousand, two hundred".