230172040 has 128 divisors (see below), whose sum is σ = 625397760. Its totient is φ = 74536704.

The previous prime is 230172037. The next prime is 230172049. The reversal of 230172040 is 40271032.

It is a junction number, because it is equal to n+sod(n) for n = 230171999 and 230172017.

It is not an unprimeable number, because it can be changed into a prime (230172049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 663147 + ... + 663493.

It is an arithmetic number, because the mean of its divisors is an integer number (4885920).

Almost surely, 2^230172040 is an apocalyptic number.

230172040 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 230172040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312698880).

230172040 is an abundant number, since it is smaller than the sum of its proper divisors (395225720).

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

230172040 is a wasteful number, since it uses less digits than its factorization.

230172040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 230172040 is about 15171.4218186695. The cubic root of 230172040 is about 612.8452941295.

The spelling of 230172040 in words is "two hundred thirty million, one hundred seventy-two thousand, forty".