248400189 has 28 divisors (see below), whose sum is σ = 375502336. Its totient is φ = 164234952.

The previous prime is 248400151. The next prime is 248400197. The reversal of 248400189 is 981004842.

248400189 is a `hidden beast` number, since 248 + 400 + 1 + 8 + 9 = 666.

It is not a de Polignac number, because 248400189 - 2²⁴ = 231622973 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 (248400199) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 91242 + ... + 93924.

Almost surely, 2^248400189 is an apocalyptic number.

It is an amenable number.

248400189 is a deficient number, since it is larger than the sum of its proper divisors (127102147).

248400189 is an equidigital number, since it uses as much as digits as its factorization.

248400189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 248400189 is about 15760.7166397978. The cubic root of 248400189 is about 628.6138913340.

The spelling of 248400189 in words is "two hundred forty-eight million, four hundred thousand, one hundred eighty-nine".