2660420446 has 8 divisors (see below), whose sum is σ = 3995703720. Its totient is φ = 1328519208.

The previous prime is 2660420431. The next prime is 2660420447. The reversal of 2660420446 is 6440240662.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660420447) 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, 843541 + ... + 846688.

It is an arithmetic number, because the mean of its divisors is an integer number (499462965).

Almost surely, 2^2660420446 is an apocalyptic number.

2660420446 is a deficient number, since it is larger than the sum of its proper divisors (1335283274).

2660420446 is a wasteful number, since it uses less digits than its factorization.

2660420446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691018.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 2660420446 is about 51579.2637209955. The cubic root of 2660420446 is about 1385.6389803542.

The spelling of 2660420446 in words is "two billion, six hundred sixty million, four hundred twenty thousand, four hundred forty-six".