61226646 has 16 divisors (see below), whose sum is σ = 131872944. Its totient is φ = 18838944.

The previous prime is 61226629. The next prime is 61226687. The reversal of 61226646 is 64662216.

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, 392401 + ... + 392556.

It is an arithmetic number, because the mean of its divisors is an integer number (8242059).

Almost surely, 2^61226646 is an apocalyptic number.

61226646 is an abundant number, since it is smaller than the sum of its proper divisors (70646298).

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

61226646 is a wasteful number, since it uses less digits than its factorization.

61226646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784975.

The product of its digits is 20736, while the sum is 33.

The square root of 61226646 is about 7824.7457466681. The cubic root of 61226646 is about 394.1366519902.

The spelling of 61226646 in words is "sixty-one million, two hundred twenty-six thousand, six hundred forty-six".