406002421050 has 96 divisors (see below), whose sum is σ = 1021981017600. Its totient is φ = 106655520960.

The previous prime is 406002421049. The next prime is 406002421127. The reversal of 406002421050 is 50124200604.

It is a super-2 number, since 2×406002421050² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406002421050.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2802291 + ... + 2943609.

It is an arithmetic number, because the mean of its divisors is an integer number (10645635600).

Almost surely, 2^406002421050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406002421050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510990508800).

406002421050 is an abundant number, since it is smaller than the sum of its proper divisors (615978596550).

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

406002421050 is a wasteful number, since it uses less digits than its factorization.

406002421050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141620 (or 141615 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 406002421050 its reverse (50124200604), we get a palindrome (456126621654).

The spelling of 406002421050 in words is "four hundred six billion, two million, four hundred twenty-one thousand, fifty".