61328266 has 8 divisors (see below), whose sum is σ = 92121120. Its totient is φ = 30621228.

The previous prime is 61328263. The next prime is 61328273. The reversal of 61328266 is 66282316.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61328266² = 7522312421133512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61328263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19636 + ... + 22543.

It is an arithmetic number, because the mean of its divisors is an integer number (11515140).

Almost surely, 2^61328266 is an apocalyptic number.

61328266 is a deficient number, since it is larger than the sum of its proper divisors (30792854).

61328266 is a wasteful number, since it uses less digits than its factorization.

61328266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42908.

The product of its digits is 20736, while the sum is 34.

The square root of 61328266 is about 7831.2365562534. The cubic root of 61328266 is about 394.3545855804.

The spelling of 61328266 in words is "sixty-one million, three hundred twenty-eight thousand, two hundred sixty-six".