68554940 has 12 divisors (see below), whose sum is σ = 143965416. Its totient is φ = 27421968.

The previous prime is 68554933. The next prime is 68554949. The reversal of 68554940 is 4945586.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68554949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713854 + ... + 1713893.

It is an arithmetic number, because the mean of its divisors is an integer number (11997118).

Almost surely, 2^68554940 is an apocalyptic number.

It is an amenable number.

68554940 is an abundant number, since it is smaller than the sum of its proper divisors (75410476).

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

68554940 is a wasteful number, since it uses less digits than its factorization.

68554940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427756 (or 3427754 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 68554940 is about 8279.7910601657. The cubic root of 68554940 is about 409.2728336233.

The spelling of 68554940 in words is "sixty-eight million, five hundred fifty-four thousand, nine hundred forty".