68103390 has 16 divisors (see below), whose sum is σ = 163448208. Its totient is φ = 18160896.

The previous prime is 68103383. The next prime is 68103401. The reversal of 68103390 is 9330186.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2270113 = 68103390 / (6 + 8 + 1 + 0 + 3 + 3 + 9 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135027 + ... + 1135086.

It is an arithmetic number, because the mean of its divisors is an integer number (10215513).

Almost surely, 2^68103390 is an apocalyptic number.

68103390 is an abundant number, since it is smaller than the sum of its proper divisors (95344818).

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

68103390 is a wasteful number, since it uses less digits than its factorization.

68103390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270123.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 68103390 is about 8252.4778097248. The cubic root of 68103390 is about 408.3722693216.

The spelling of 68103390 in words is "sixty-eight million, one hundred three thousand, three hundred ninety".