68092140 has 96 divisors (see below), whose sum is σ = 203442624. Its totient is φ = 16957440.

The previous prime is 68092139. The next prime is 68092147. The reversal of 68092140 is 4129086.

It is a Harshad number since it is a multiple of its sum of digits (30).

68092140 is a modest number, since divided by 92140 gives 680 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 68092098 and 68092107.

It is not an unprimeable number, because it can be changed into a prime (68092147) 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, 245682 + ... + 245958.

It is an arithmetic number, because the mean of its divisors is an integer number (2119194).

Almost surely, 2^68092140 is an apocalyptic number.

68092140 is a gapful number since it is divisible by the number (60) 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 68092140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101721312).

68092140 is an abundant number, since it is smaller than the sum of its proper divisors (135350484).

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

68092140 is a wasteful number, since it uses less digits than its factorization.

68092140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 68092140 is about 8251.7961681079. The cubic root of 68092140 is about 408.3497817429.

The spelling of 68092140 in words is "sixty-eight million, ninety-two thousand, one hundred forty".