248520690 has 96 divisors (see below), whose sum is σ = 728542080. Its totient is φ = 60239520.

The previous prime is 248520683. The next prime is 248520719. The reversal of 248520690 is 96025842.

It is a happy number.

248520690 is a `hidden beast` number, since 2 + 48 + 520 + 6 + 90 = 666.

It is a super-3 number, since 3×248520690³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28867 + ... + 36473.

It is an arithmetic number, because the mean of its divisors is an integer number (7588980).

Almost surely, 2^248520690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248520690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364271040).

248520690 is an abundant number, since it is smaller than the sum of its proper divisors (480021390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248520690 is a wasteful number, since it uses less digits than its factorization.

248520690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7645 (or 7628 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 248520690 is about 15764.5390037261. The cubic root of 248520690 is about 628.7155235125.

The spelling of 248520690 in words is "two hundred forty-eight million, five hundred twenty thousand, six hundred ninety".