406015303680 has 896 divisors, whose sum is σ = 1664617651200. Its totient is φ = 91970076672.

The previous prime is 406015303679. The next prime is 406015303699. The reversal of 406015303680 is 86303510604.

406015303680 is a `hidden beast` number, since 4 + 0 + 60 + 1 + 530 + 3 + 68 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (896).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1385717614 + ... + 1385717906.

It is an arithmetic number, because the mean of its divisors is an integer number (1857832200).

Almost surely, 2^406015303680 is an apocalyptic number.

406015303680 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 406015303680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832308825600).

406015303680 is an abundant number, since it is smaller than the sum of its proper divisors (1258602347520).

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

406015303680 is a wasteful number, since it uses less digits than its factorization.

406015303680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 406015303680 in words is "four hundred six billion, fifteen million, three hundred three thousand, six hundred eighty".