68922940 has 24 divisors (see below), whose sum is σ = 145141920. Its totient is φ = 27492288.

The previous prime is 68922901. The next prime is 68922941. The reversal of 68922940 is 4922986.

It is a junction number, because it is equal to n+sod(n) for n = 68922893 and 68922902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68922941) 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, 2841 + ... + 12079.

It is an arithmetic number, because the mean of its divisors is an integer number (6047580).

Almost surely, 2^68922940 is an apocalyptic number.

It is an amenable number.

68922940 is an abundant number, since it is smaller than the sum of its proper divisors (76218980).

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

68922940 is a wasteful number, since it uses less digits than its factorization.

68922940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9621 (or 9619 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 68922940 is about 8301.9841002016. The cubic root of 68922940 is about 410.0038468804.

The spelling of 68922940 in words is "sixty-eight million, nine hundred twenty-two thousand, nine hundred forty".