38321297280 has 1152 divisors, whose sum is σ = 166854504960. Its totient is φ = 7919493120.

The previous prime is 38321297219. The next prime is 38321297341. The reversal of 38321297280 is 8279212383.

38321297280 is a `hidden beast` number, since 3 + 83 + 2 + 1 + 297 + 280 = 666.

It is an interprime number because it is at equal distance from previous prime (38321297219) and next prime (38321297341).

It is a tau number, because it is divible by the number of its divisors (1152).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 891192939 + ... + 891192981.

It is an arithmetic number, because the mean of its divisors is an integer number (144838980).

Almost surely, 2^38321297280 is an apocalyptic number.

38321297280 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 38321297280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83427252480).

38321297280 is an abundant number, since it is smaller than the sum of its proper divisors (128533207680).

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

38321297280 is a wasteful number, since it uses less digits than its factorization.

38321297280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 38321297280 in words is "thirty-eight billion, three hundred twenty-one million, two hundred ninety-seven thousand, two hundred eighty".