247385016 has 160 divisors (see below), whose sum is σ = 742262400. Its totient is φ = 76749120.

The previous prime is 247385011. The next prime is 247385027. The reversal of 247385016 is 610583742.

It is a super-2 number, since 2×247385016² = 122398692282640512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247385011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 874011 + ... + 874293.

It is an arithmetic number, because the mean of its divisors is an integer number (4639140).

Almost surely, 2^247385016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247385016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371131200).

247385016 is an abundant number, since it is smaller than the sum of its proper divisors (494877384).

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

247385016 is a wasteful number, since it uses less digits than its factorization.

247385016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 247385016 is about 15728.4778665960. The cubic root of 247385016 is about 627.7563729692.

The spelling of 247385016 in words is "two hundred forty-seven million, three hundred eighty-five thousand, sixteen".