248969090 has 16 divisors (see below), whose sum is σ = 456600888. Its totient is φ = 97708416.

The previous prime is 248969081. The next prime is 248969107. The reversal of 248969090 is 90969842.

It can be written as a sum of positive squares in 4 ways, for example, as 158281561 + 90687529 = 12581^2 + 9523^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234347 + ... + 235406.

Almost surely, 2^248969090 is an apocalyptic number.

248969090 is a deficient number, since it is larger than the sum of its proper divisors (207631798).

248969090 is a wasteful number, since it uses less digits than its factorization.

248969090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469813.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 248969090 is about 15778.7543868329. The cubic root of 248969090 is about 629.0934218396.

The spelling of 248969090 in words is "two hundred forty-eight million, nine hundred sixty-nine thousand, ninety".