247793020 has 48 divisors (see below), whose sum is σ = 561411648. Its totient is φ = 91520000.

The previous prime is 247793017. The next prime is 247793027. The reversal of 247793020 is 20397742.

247793020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247793020² = 122802761521440800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247793027) 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, 11145 + ... + 24895.

It is an arithmetic number, because the mean of its divisors is an integer number (11696076).

Almost surely, 2^247793020 is an apocalyptic number.

247793020 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 247793020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280705824).

247793020 is an abundant number, since it is smaller than the sum of its proper divisors (313618628).

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

247793020 is a wasteful number, since it uses less digits than its factorization.

247793020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13830 (or 13828 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 247793020 is about 15741.4427547160. The cubic root of 247793020 is about 628.1012960866.

The spelling of 247793020 in words is "two hundred forty-seven million, seven hundred ninety-three thousand, twenty".