247072352 has 48 divisors (see below), whose sum is σ = 514382400. Its totient is φ = 116496000.

The previous prime is 247072351. The next prime is 247072381. The reversal of 247072352 is 253270742.

It is a super-2 number, since 2×247072352² = 122089494245623808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247072351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151799 + ... + 153417.

It is an arithmetic number, because the mean of its divisors is an integer number (10716300).

Almost surely, 2^247072352 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 247072352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257191200).

247072352 is an abundant number, since it is smaller than the sum of its proper divisors (267310048).

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

247072352 is a wasteful number, since it uses less digits than its factorization.

247072352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 247072352 is about 15718.5353007206. The cubic root of 247072352 is about 627.4917927213.

The spelling of 247072352 in words is "two hundred forty-seven million, seventy-two thousand, three hundred fifty-two".