247828944 has 80 divisors (see below), whose sum is σ = 703954944. Its totient is φ = 74505600.

The previous prime is 247828939. The next prime is 247828957. The reversal of 247828944 is 449828742.

It is a super-2 number, since 2×247828944² = 122838370968310272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 247828893 and 247828902.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 67377 + ... + 70959.

Almost surely, 2^247828944 is an apocalyptic number.

247828944 is a gapful number since it is divisible by the number (24) 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 247828944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351977472).

247828944 is an abundant number, since it is smaller than the sum of its proper divisors (456126000).

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

247828944 is a wasteful number, since it uses less digits than its factorization.

247828944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736 (or 3730 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 247828944 is about 15742.5837777666. The cubic root of 247828944 is about 628.1316477898.

The spelling of 247828944 in words is "two hundred forty-seven million, eight hundred twenty-eight thousand, nine hundred forty-four".