388824253 has 4 divisors (see below), whose sum is σ = 389093308. Its totient is φ = 388555200.

The previous prime is 388824251. The next prime is 388824287. The reversal of 388824253 is 352428883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352428883 = 7789 ⋅45247.

It can be written as a sum of positive squares in 2 ways, for example, as 179211769 + 209612484 = 13387^2 + 14478^2 .

It is a cyclic number.

It is not a de Polignac number, because 388824253 - 2¹ = 388824251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388824251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132348 + ... + 135253.

It is an arithmetic number, because the mean of its divisors is an integer number (97273327).

Almost surely, 2^388824253 is an apocalyptic number.

It is an amenable number.

388824253 is a deficient number, since it is larger than the sum of its proper divisors (269055).

388824253 is a wasteful number, since it uses less digits than its factorization.

388824253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269054.

The product of its digits is 368640, while the sum is 43.

The square root of 388824253 is about 19718.6270566690. The cubic root of 388824253 is about 729.8794152484.

The spelling of 388824253 in words is "three hundred eighty-eight million, eight hundred twenty-four thousand, two hundred fifty-three".