68740292 has 6 divisors (see below), whose sum is σ = 120295518. Its totient is φ = 34370144.

The previous prime is 68740291. The next prime is 68740303. The reversal of 68740292 is 29204786.

It can be written as a sum of positive squares in only one way, i.e., 67338436 + 1401856 = 8206^2 + 1184^2 .

It is not an unprimeable number, because it can be changed into a prime (68740291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8592533 + ... + 8592540.

It is an arithmetic number, because the mean of its divisors is an integer number (20049253).

Almost surely, 2^68740292 is an apocalyptic number.

It is an amenable number.

68740292 is a deficient number, since it is larger than the sum of its proper divisors (51555226).

68740292 is a wasteful number, since it uses less digits than its factorization.

68740292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17185077 (or 17185075 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 68740292 is about 8290.9765407942. The cubic root of 68740292 is about 409.6413520390.

The spelling of 68740292 in words is "sixty-eight million, seven hundred forty thousand, two hundred ninety-two".