61222868 has 24 divisors (see below), whose sum is σ = 123188352. Its totient is φ = 26079264.

The previous prime is 61222853. The next prime is 61222873. The reversal of 61222868 is 86822216.

It is a super-2 number, since 2×61222868² = 7496479132290848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1871 + ... + 11222.

It is an arithmetic number, because the mean of its divisors is an integer number (5132848).

Almost surely, 2^61222868 is an apocalyptic number.

It is an amenable number.

61222868 is an abundant number, since it is smaller than the sum of its proper divisors (61965484).

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

61222868 is a wasteful number, since it uses less digits than its factorization.

61222868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13271 (or 13269 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 61222868 is about 7824.5043293489. The cubic root of 61222868 is about 394.1285450684.

The spelling of 61222868 in words is "sixty-one million, two hundred twenty-two thousand, eight hundred sixty-eight".