388633245 has 144 divisors (see below), whose sum is σ = 850502016. Its totient is φ = 148262400.

The previous prime is 388633213. The next prime is 388633249. The reversal of 388633245 is 542336883.

It is a happy number.

It is not a de Polignac number, because 388633245 - 2⁵ = 388633213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 388633197 and 388633206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388633249) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2147055 + ... + 2147235.

It is an arithmetic number, because the mean of its divisors is an integer number (5906264).

Almost surely, 2^388633245 is an apocalyptic number.

388633245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

388633245 is an abundant number, since it is smaller than the sum of its proper divisors (461868771).

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

388633245 is a wasteful number, since it uses less digits than its factorization.

388633245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 220 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 388633245 is about 19713.7831224755. The cubic root of 388633245 is about 729.7598791160.

The spelling of 388633245 in words is "three hundred eighty-eight million, six hundred thirty-three thousand, two hundred forty-five".