389720457000 has 1024 divisors, whose sum is σ = 1665570816000. Its totient is φ = 82301184000.

The previous prime is 389720456969. The next prime is 389720457037. The reversal of 389720457000 is 754027983.

389720457000 is a `hidden beast` number, since 3 + 8 + 9 + 72 + 0 + 4 + 570 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 147229677 + ... + 147232323.

It is an arithmetic number, because the mean of its divisors is an integer number (1626534000).

Almost surely, 2^389720457000 is an apocalyptic number.

389720457000 is a gapful number since it is divisible by the number (30) 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 389720457000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832785408000).

389720457000 is an abundant number, since it is smaller than the sum of its proper divisors (1275850359000).

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

389720457000 is a wasteful number, since it uses less digits than its factorization.

389720457000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 389720457000 in words is "three hundred eighty-nine billion, seven hundred twenty million, four hundred fifty-seven thousand".