248238140 has 24 divisors (see below), whose sum is σ = 533425200. Its totient is φ = 96985728.

The previous prime is 248238127. The next prime is 248238157. The reversal of 248238140 is 41832842.

It is a junction number, because it is equal to n+sod(n) for n = 248238097 and 248238106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143465 + ... + 145184.

It is an arithmetic number, because the mean of its divisors is an integer number (22226050).

Almost surely, 2^248238140 is an apocalyptic number.

248238140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248238140 is an abundant number, since it is smaller than the sum of its proper divisors (285187060).

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

248238140 is a wasteful number, since it uses less digits than its factorization.

248238140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288701 (or 288699 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 248238140 is about 15755.5748863696. The cubic root of 248238140 is about 628.4771651739.

The spelling of 248238140 in words is "two hundred forty-eight million, two hundred thirty-eight thousand, one hundred forty".