68438004 has 24 divisors (see below), whose sum is σ = 161272608. Its totient is φ = 22586400.

The previous prime is 68437961. The next prime is 68438009. The reversal of 68438004 is 40083486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68438009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27022 + ... + 29445.

It is an arithmetic number, because the mean of its divisors is an integer number (6719692).

Almost surely, 2^68438004 is an apocalyptic number.

It is an amenable number.

68438004 is an abundant number, since it is smaller than the sum of its proper divisors (92834604).

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

68438004 is a wasteful number, since it uses less digits than its factorization.

68438004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56575 (or 56573 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 68438004 is about 8272.7265154845. The cubic root of 68438004 is about 409.0399986388.

The spelling of 68438004 in words is "sixty-eight million, four hundred thirty-eight thousand, four".