61662426 has 32 divisors (see below), whose sum is σ = 143607168. Its totient is φ = 17284800.

The previous prime is 61662421. The next prime is 61662427. The reversal of 61662426 is 62426616.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61662421) 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, 11625 + ... + 16076.

It is an arithmetic number, because the mean of its divisors is an integer number (4487724).

Almost surely, 2^61662426 is an apocalyptic number.

61662426 is an abundant number, since it is smaller than the sum of its proper divisors (81944742).

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

61662426 is a wasteful number, since it uses less digits than its factorization.

61662426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27766.

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

The square root of 61662426 is about 7852.5426455385. The cubic root of 61662426 is about 395.0695300344.

The spelling of 61662426 in words is "sixty-one million, six hundred sixty-two thousand, four hundred twenty-six".