68922660 has 48 divisors (see below), whose sum is σ = 193346496. Its totient is φ = 18344832.

The previous prime is 68922653. The next prime is 68922661. The reversal of 68922660 is 6622986.

It is a super-2 number, since 2×68922660² = 9500666122951200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68922661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56214 + ... + 57426.

It is an arithmetic number, because the mean of its divisors is an integer number (4028052).

Almost surely, 2^68922660 is an apocalyptic number.

68922660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68922660 is an abundant number, since it is smaller than the sum of its proper divisors (124423836).

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

68922660 is a wasteful number, since it uses less digits than its factorization.

68922660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172 (or 2170 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 68922660 is about 8301.9672367458. The cubic root of 68922660 is about 410.0032916650.

The spelling of 68922660 in words is "sixty-eight million, nine hundred twenty-two thousand, six hundred sixty".