60381818 has 12 divisors (see below), whose sum is σ = 105360282. Its totient is φ = 25877880.

The previous prime is 60381809. The next prime is 60381823. The reversal of 60381818 is 81818306.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60264169 + 117649 = 7763^2 + 343^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 307973 + ... + 308168.

Almost surely, 2^60381818 is an apocalyptic number.

60381818 is a deficient number, since it is larger than the sum of its proper divisors (44978464).

60381818 is a wasteful number, since it uses less digits than its factorization.

60381818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616157 (or 616150 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 60381818 is about 7770.5738526830. The cubic root of 60381818 is about 392.3154348830.

The spelling of 60381818 in words is "sixty million, three hundred eighty-one thousand, eight hundred eighteen".