61226286 has 16 divisors (see below), whose sum is σ = 133584768. Its totient is φ = 18553400.

The previous prime is 61226273. The next prime is 61226287. The reversal of 61226286 is 68262216.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61226287) 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, 463770 + ... + 463901.

It is an arithmetic number, because the mean of its divisors is an integer number (8349048).

Almost surely, 2^61226286 is an apocalyptic number.

61226286 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61226286 is an abundant number, since it is smaller than the sum of its proper divisors (72358482).

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

61226286 is a wasteful number, since it uses less digits than its factorization.

61226286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927687.

The product of its digits is 13824, while the sum is 33.

The square root of 61226286 is about 7824.7227426919. The cubic root of 61226286 is about 394.1358795081.

The spelling of 61226286 in words is "sixty-one million, two hundred twenty-six thousand, two hundred eighty-six".