388430061 has 4 divisors (see below), whose sum is σ = 517906752. Its totient is φ = 258953372.

The previous prime is 388429997. The next prime is 388430071. The reversal of 388430061 is 160034883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160034883 = 3 ⋅53344961.

It is a cyclic number.

It is not a de Polignac number, because 388430061 - 2⁶ = 388429997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388430071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64738341 + ... + 64738346.

It is an arithmetic number, because the mean of its divisors is an integer number (129476688).

Almost surely, 2^388430061 is an apocalyptic number.

It is an amenable number.

388430061 is a deficient number, since it is larger than the sum of its proper divisors (129476691).

388430061 is a wasteful number, since it uses less digits than its factorization.

388430061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129476690.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 388430061 is about 19708.6290999653. The cubic root of 388430061 is about 729.6326800313.

The spelling of 388430061 in words is "three hundred eighty-eight million, four hundred thirty thousand, sixty-one".