231400350 has 72 divisors (see below), whose sum is σ = 626745600. Its totient is φ = 61205760.

The previous prime is 231400349. The next prime is 231400363. The reversal of 231400350 is 53004132.

231400350 is a `hidden beast` number, since 2 + 314 + 0 + 0 + 350 = 666.

It is a super-2 number, since 2×231400350² = 107092243960245000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55126 + ... + 59174.

It is an arithmetic number, because the mean of its divisors is an integer number (8704800).

Almost surely, 2^231400350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231400350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313372800).

231400350 is an abundant number, since it is smaller than the sum of its proper divisors (395345250).

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

231400350 is a wasteful number, since it uses less digits than its factorization.

231400350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 231400350 is about 15211.8490000394. The cubic root of 231400350 is about 613.9335075672.

Adding to 231400350 its reverse (53004132), we get a palindrome (284404482).

The spelling of 231400350 in words is "two hundred thirty-one million, four hundred thousand, three hundred fifty".