248857644 has 24 divisors (see below), whose sum is σ = 663620608. Its totient is φ = 71102160.

The previous prime is 248857619. The next prime is 248857667. The reversal of 248857644 is 446758842.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 248857593 and 248857602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481212 + ... + 1481379.

Almost surely, 2^248857644 is an apocalyptic number.

It is an amenable number.

248857644 is an abundant number, since it is smaller than the sum of its proper divisors (414762964).

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

248857644 is a wasteful number, since it uses less digits than its factorization.

248857644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962605 (or 2962603 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 48.

The square root of 248857644 is about 15775.2224706975. Note that the first 3 decimals coincide. The cubic root of 248857644 is about 628.9995408292. Note that the first 3 decimals are identical.

The spelling of 248857644 in words is "two hundred forty-eight million, eight hundred fifty-seven thousand, six hundred forty-four".