68240277 has 48 divisors (see below), whose sum is σ = 119508480. Its totient is φ = 36691200.

The previous prime is 68240251. The next prime is 68240297. The reversal of 68240277 is 77204286.

It is not a de Polignac number, because 68240277 - 2²⁶ = 1131413 is a prime.

It is a super-3 number, since 3×68240277³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68240297) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74452 + ... + 75362.

It is an arithmetic number, because the mean of its divisors is an integer number (2489760).

Almost surely, 2^68240277 is an apocalyptic number.

It is an amenable number.

68240277 is a deficient number, since it is larger than the sum of its proper divisors (51268203).

68240277 is a wasteful number, since it uses less digits than its factorization.

68240277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 68240277 is about 8260.7673372393. The cubic root of 68240277 is about 408.6456940035.

The spelling of 68240277 in words is "sixty-eight million, two hundred forty thousand, two hundred seventy-seven".