68431000 has 64 divisors (see below), whose sum is σ = 174713760. Its totient is φ = 24880000.

The previous prime is 68430991. The next prime is 68431031. The reversal of 68431000 is 13486.

It is a super-2 number, since 2×68431000² = 9365603522000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7890 + ... + 14110.

Almost surely, 2^68431000 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 68431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87356880).

68431000 is an abundant number, since it is smaller than the sum of its proper divisors (106282760).

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

68431000 is a wasteful number, since it uses less digits than its factorization.

68431000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253 (or 6239 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 68431000 is about 8272.3031859332. The cubic root of 68431000 is about 409.0260443360.

Adding to 68431000 its reverse (13486), we get a palindrome (68444486).

It can be divided in two parts, 684 and 31000, that added together give a square (31684 = 178²).

The spelling of 68431000 in words is "sixty-eight million, four hundred thirty-one thousand".