246991728 has 20 divisors (see below), whose sum is σ = 638062088. Its totient is φ = 82330560.

The previous prime is 246991709. The next prime is 246991751. The reversal of 246991728 is 827199642.

It is a super-2 number, since 2×246991728² = 122009827400851968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5145661 = 246991728 / (2 + 4 + 6 + 9 + 9 + 1 + 7 + 2 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572783 + ... + 2572878.

Almost surely, 2^246991728 is an apocalyptic number.

It is an amenable number.

246991728 is an abundant number, since it is smaller than the sum of its proper divisors (391070360).

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

246991728 is a wasteful number, since it uses less digits than its factorization.

246991728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145672 (or 5145666 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 246991728 is about 15715.9704759203. The cubic root of 246991728 is about 627.4235314721.

The spelling of 246991728 in words is "two hundred forty-six million, nine hundred ninety-one thousand, seven hundred twenty-eight".