388476149 has 2 divisors, whose sum is σ = 388476150. Its totient is φ = 388476148.

The previous prime is 388476133. The next prime is 388476191. The reversal of 388476149 is 941674883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235162225 + 153313924 = 15335^2 + 12382^2 .

It is a cyclic number.

It is not a de Polignac number, because 388476149 - 2⁴ = 388476133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388476097 and 388476106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388473149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194238074 + 194238075.

It is an arithmetic number, because the mean of its divisors is an integer number (194238075).

Almost surely, 2^388476149 is an apocalyptic number.

It is an amenable number.

388476149 is a deficient number, since it is larger than the sum of its proper divisors (1).

388476149 is an equidigital number, since it uses as much as digits as its factorization.

388476149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The square root of 388476149 is about 19709.7982993231. The cubic root of 388476149 is about 729.6615363467.

The spelling of 388476149 in words is "three hundred eighty-eight million, four hundred seventy-six thousand, one hundred forty-nine".