230781672 has 96 divisors (see below), whose sum is σ = 685582560. Its totient is φ = 69552000.

The previous prime is 230781659. The next prime is 230781751. The reversal of 230781672 is 276187032.

230781672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×230781672² = 106520360262231168, which contains 22 as substring.

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

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166422 + ... + 167802.

It is an arithmetic number, because the mean of its divisors is an integer number (7141485).

Almost surely, 2^230781672 is an apocalyptic number.

230781672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a pronic number, being equal to 15191×15192.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230781672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342791280).

230781672 is an abundant number, since it is smaller than the sum of its proper divisors (454800888).

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

230781672 is a wasteful number, since it uses less digits than its factorization.

230781672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 230781672 is about 15191.4999917717. The cubic root of 230781672 is about 613.3858763535.

The spelling of 230781672 in words is "two hundred thirty million, seven hundred eighty-one thousand, six hundred seventy-two".