60669840 has 320 divisors, whose sum is σ = 242841600. Its totient is φ = 12418560.

The previous prime is 60669803. The next prime is 60669841. The reversal of 60669840 is 4896606.

It is not an unprimeable number, because it can be changed into a prime (60669841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 905487 + ... + 905553.

It is an arithmetic number, because the mean of its divisors is an integer number (758880).

Almost surely, 2^60669840 is an apocalyptic number.

60669840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60669840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121420800).

60669840 is an abundant number, since it is smaller than the sum of its proper divisors (182171760).

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

60669840 is a wasteful number, since it uses less digits than its factorization.

60669840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 60669840 is about 7789.0846702292. The cubic root of 60669840 is about 392.9382288038.

The spelling of 60669840 in words is "sixty million, six hundred sixty-nine thousand, eight hundred forty".