947223391400 has 192 divisors, whose sum is σ = 2657241175680. Its totient is φ = 309355545600.

The previous prime is 947223391351. The next prime is 947223391403. The reversal of 947223391400 is 4193322749.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (947223391403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 610637 + ... + 1505763.

It is an arithmetic number, because the mean of its divisors is an integer number (13839797790).

Almost surely, 2^947223391400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 947223391400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328620587840).

947223391400 is an abundant number, since it is smaller than the sum of its proper divisors (1710017784280).

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

947223391400 is a wasteful number, since it uses less digits than its factorization.

947223391400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895204 (or 895195 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 947223391400 in words is "nine hundred forty-seven billion, two hundred twenty-three million, three hundred ninety-one thousand, four hundred".