400019316480 has 1080 divisors, whose sum is σ = 1690004463840. Its totient is φ = 90063912960.

The previous prime is 400019316467. The next prime is 400019316491. The reversal of 400019316480 is 84613910004.

400019316480 is a `hidden beast` number, since 4 + 0 + 0 + 0 + 1 + 9 + 3 + 1 + 648 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 119 ways as a sum of consecutive naturals, for example, 360702166 + ... + 360703274.

It is an arithmetic number, because the mean of its divisors is an integer number (1564818948).

Almost surely, 2^400019316480 is an apocalyptic number.

400019316480 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 400019316480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845002231920).

400019316480 is an abundant number, since it is smaller than the sum of its proper divisors (1289985147360).

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

400019316480 is a wasteful number, since it uses less digits than its factorization.

400019316480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 400019316480 in words is "four hundred billion, nineteen million, three hundred sixteen thousand, four hundred eighty".