68461042 has 16 divisors (see below), whose sum is σ = 110741400. Its totient is φ = 31554432.

The previous prime is 68461037. The next prime is 68461049. The reversal of 68461042 is 24016486.

It can be written as a sum of positive squares in 4 ways, for example, as 68376361 + 84681 = 8269^2 + 291^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68460995 and 68461013.

It is not an unprimeable number, because it can be changed into a prime (68461049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25584 + ... + 28132.

Almost surely, 2^68461042 is an apocalyptic number.

68461042 is a deficient number, since it is larger than the sum of its proper divisors (42280358).

68461042 is a wasteful number, since it uses less digits than its factorization.

68461042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 68461042 is about 8274.1188050450. The cubic root of 68461042 is about 409.0858912995.

The spelling of 68461042 in words is "sixty-eight million, four hundred sixty-one thousand, forty-two".