68403518 has 32 divisors (see below), whose sum is σ = 113218560. Its totient is φ = 30886240.

The previous prime is 68403469. The next prime is 68403523. The reversal of 68403518 is 81530486.

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, 62153 + ... + 63243.

It is an arithmetic number, because the mean of its divisors is an integer number (3538080).

Almost surely, 2^68403518 is an apocalyptic number.

68403518 is a deficient number, since it is larger than the sum of its proper divisors (44815042).

68403518 is a wasteful number, since it uses less digits than its factorization.

68403518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 68403518 is about 8270.6419339734. The cubic root of 68403518 is about 408.9712818313.

It can be divided in two parts, 68403 and 518, that added together give a cube (68921 = 41³).

The spelling of 68403518 in words is "sixty-eight million, four hundred three thousand, five hundred eighteen".