66242832 has 40 divisors (see below), whose sum is σ = 171890784. Its totient is φ = 21982464.

The previous prime is 66242831. The next prime is 66242849. The reversal of 66242832 is 23824266.

It is a super-2 number, since 2×66242832² = 8776225582760448, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 66242793 and 66242802.

It is not an unprimeable number, because it can be changed into a prime (66242831) 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, 8223 + ... + 14145.

Almost surely, 2^66242832 is an apocalyptic number.

It is an amenable number.

66242832 is an abundant number, since it is smaller than the sum of its proper divisors (105647952).

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

66242832 is a wasteful number, since it uses less digits than its factorization.

66242832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167 (or 6161 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 66242832 is about 8138.9699593990. The cubic root of 66242832 is about 404.6190229252.

The spelling of 66242832 in words is "sixty-six million, two hundred forty-two thousand, eight hundred thirty-two".