388493760 has 224 divisors, whose sum is σ = 1324051200. Its totient is φ = 96482304.

The previous prime is 388493719. The next prime is 388493761. The reversal of 388493760 is 67394883.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388493761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6584611 + ... + 6584669.

Almost surely, 2^388493760 is an apocalyptic number.

388493760 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 388493760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662025600).

388493760 is an abundant number, since it is smaller than the sum of its proper divisors (935557440).

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

388493760 is an equidigital number, since it uses as much as digits as its factorization.

388493760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 388493760 is about 19710.2450517491. The cubic root of 388493760 is about 729.6725622275.

The spelling of 388493760 in words is "three hundred eighty-eight million, four hundred ninety-three thousand, seven hundred sixty".