248666740 has 48 divisors (see below), whose sum is σ = 600308352. Its totient is φ = 84756096.

The previous prime is 248666713. The next prime is 248666767. The reversal of 248666740 is 47666842.

It is an interprime number because it is at equal distance from previous prime (248666713) and next prime (248666767).

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19087 + ... + 29353.

It is an arithmetic number, because the mean of its divisors is an integer number (12506424).

Almost surely, 2^248666740 is an apocalyptic number.

248666740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248666740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300154176).

248666740 is an abundant number, since it is smaller than the sum of its proper divisors (351641612).

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

248666740 is a wasteful number, since it uses less digits than its factorization.

248666740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10456 (or 10454 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 248666740 is about 15769.1705552321. The cubic root of 248666740 is about 628.8386600348.

The spelling of 248666740 in words is "two hundred forty-eight million, six hundred sixty-six thousand, seven hundred forty".