147666240 has 224 divisors, whose sum is σ = 529864320. Its totient is φ = 39191040.

The previous prime is 147666227. The next prime is 147666251. The reversal of 147666240 is 42666741.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 147666195 and 147666204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699735 + ... + 699945.

Almost surely, 2^147666240 is an apocalyptic number.

147666240 is a gapful number since it is divisible by the number (10) 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 147666240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264932160).

147666240 is an abundant number, since it is smaller than the sum of its proper divisors (382198080).

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

147666240 is an frugal number, since it uses more digits than its factorization.

147666240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 147666240 is about 12151.7998666864. The cubic root of 147666240 is about 528.5593246385.

The spelling of 147666240 in words is "one hundred forty-seven million, six hundred sixty-six thousand, two hundred forty".