388020429 has 16 divisors (see below), whose sum is σ = 582124800. Its totient is φ = 255404448.

The previous prime is 388020421. The next prime is 388020431. The reversal of 388020429 is 924020883.

It is not a de Polignac number, because 388020429 - 2³ = 388020421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388020393 and 388020402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388020421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88824 + ... + 93089.

It is an arithmetic number, because the mean of its divisors is an integer number (36382800).

Almost surely, 2^388020429 is an apocalyptic number.

It is an amenable number.

388020429 is a deficient number, since it is larger than the sum of its proper divisors (194104371).

388020429 is a wasteful number, since it uses less digits than its factorization.

388020429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182001 (or 181995 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 388020429 is about 19698.2341594367. The cubic root of 388020429 is about 729.3761035795.

The spelling of 388020429 in words is "three hundred eighty-eight million, twenty thousand, four hundred twenty-nine".