68370040 has 16 divisors (see below), whose sum is σ = 153832680. Its totient is φ = 27348000.

The previous prime is 68370017. The next prime is 68370047. The reversal of 68370040 is 4007386.

It is a junction number, because it is equal to n+sod(n) for n = 68369990 and 68370008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68370047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854586 + ... + 854665.

Almost surely, 2^68370040 is an apocalyptic number.

It is an amenable number.

68370040 is an abundant number, since it is smaller than the sum of its proper divisors (85462640).

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

68370040 is a wasteful number, since it uses less digits than its factorization.

68370040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709262 (or 1709258 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 68370040 is about 8268.6177805000. The cubic root of 68370040 is about 408.9045514681.

The spelling of 68370040 in words is "sixty-eight million, three hundred seventy thousand, forty".