248515440 has 80 divisors (see below), whose sum is σ = 810960000. Its totient is φ = 62781696.

The previous prime is 248515439. The next prime is 248515441. The reversal of 248515440 is 44515842.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (248515439) and next prime (248515441).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248515441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22690 + ... + 31809.

It is an arithmetic number, because the mean of its divisors is an integer number (10137000).

Almost surely, 2^248515440 is an apocalyptic number.

248515440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248515440 is an abundant number, since it is smaller than the sum of its proper divisors (562444560).

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

248515440 is a wasteful number, since it uses less digits than its factorization.

248515440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54534 (or 54528 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 248515440 is about 15764.3724898900. The cubic root of 248515440 is about 628.7110962758.

The spelling of 248515440 in words is "two hundred forty-eight million, five hundred fifteen thousand, four hundred forty".